The Congress of Vienna (1814-1815)

The Congress of Vienna, which convened from September 1814 to June 1815, stands as one of the most consequential diplomatic gatherings in the history of Western civilization. Assembled in the glittering Habsburg capital at a moment when Europe lay exhausted and transformed by more than two decades of revolutionary and Napoleonic warfare, the Congress brought together the principal statesmen of the great powers to reconstruct the political map of a continent and to establish a framework for international order that would endure, with remarkable resilience, for the better part of a century. The men who gathered in Vienna were not naive idealists; they were hardened diplomats, aristocratic conservatives, and calculating strategists who had lived through the upheavals of revolution and the terror of military conquest, and who were determined to prevent such catastrophes from occurring again. Their work produced a settlement that, despite its manifest failings from the perspectives of liberalism and nationalism, created the conditions for the longest period of general European peace in modern history.

To understand what the Congress of Vienna achieved, one must first understand the catastrophe that preceded it. Between 1789, when the French Revolution began, and 1814, when Napoleon Bonaparte was forced to abdicate, Europe had passed through a quarter century of convulsive change. Revolutions had toppled established monarchies. Armies had marched across the continent from Portugal to the banks of the Neva River. Empires had been created, dismantled, and reconstituted. Borders that had remained fixed for generations were redrawn, again and again, by the stroke of a treaty pen or the outcome of a battle. The old Holy Roman Empire, that ancient political structure that had shaped Central European life for centuries, had been dissolved by Napoleon in 1806. Kingdoms that had existed for centuries — Poland, Venice, the Republic of Genoa, numerous German principalities — had been extinguished or radically transformed. The social order of Europe, based on aristocratic privilege, established church authority, and hereditary monarchy, had been challenged at its foundations by the revolutionary doctrines of liberty, equality, and popular sovereignty. The Congress of Vienna was Europe's attempt to put itself back together again, and to do so in a way that would make future catastrophes less likely.

The State of Europe After Twenty-Five Years of War

The wars that preceded the Congress of Vienna fell into two broad phases. The first was the era of the Revolutionary Wars, from 1792 to 1799, when the new French Republic, fighting for its survival against the conservative monarchies of Europe, discovered that its armies — animated by revolutionary patriotism and led by a new generation of talented officers who had risen on merit rather than birth — could defeat the professional armies of its enemies. France had gone from fighting for survival to achieving dominance. The second phase was the Napoleonic era, from 1799 to 1814, when Napoleon Bonaparte, having seized power in France, transformed the French state and its armies into instruments of personal and imperial ambition on a scale Europe had not seen since the age of Rome.

Napoleon's conquests had reshaped Europe completely. At the height of his power, around 1810 to 1811, Napoleon ruled France directly, controlled the satellite kingdoms of Spain (given to his brother Joseph), Westphalia (given to his brother Jerome), Holland (given to his brother Louis, then annexed directly to France when Louis refused to cooperate with the Continental System), and the Italian states. His allies or dependents included the Confederation of the Rhine (most of Germany), the Duchy of Warsaw (recreated from Polish territory), Denmark, and Switzerland. Only Britain, Russia, Sweden, and the Ottoman Empire remained clearly outside his system. Austria and Prussia had been humiliated in wars — Prussia crushed at Jena and Auerstedt in 1806, Austria forced to cede territory after defeats at Austerlitz in 1805 and Wagram in 1809 — but survived as subordinate partners in the Napoleonic order.

The Continental System, Napoleon's attempt to strangle Britain economically by closing European ports to British trade, created enormous economic hardship across the continent and generated intense resentment. It was partly this resentment, along with Tsar Alexander I's unwillingness to maintain the system faithfully, that precipitated Napoleon's catastrophic Russian campaign of 1812. The army that Napoleon led into Russia in June 1812 was the largest ever assembled in European history to that point — roughly 600,000 men drawn from across the French Empire and its satellite states. The Russian strategy of strategic withdrawal, combined with the vast distances of the Russian interior, the scorched-earth tactics that denied Napoleon's army supplies, and ultimately the devastating Russian winter, destroyed this Grand Army. By the time the remnants staggered back across the Polish border in December 1812, perhaps 400,000 men had been lost to combat, disease, cold, and starvation. It was a catastrophe without precedent in modern military history.

The Russian disaster transformed the political situation in Europe. Prussia, sensing Napoleon's weakness, switched sides and declared war on France in February 1813. Austria, which had been carefully staying neutral and rebuilding its military under the guidance of Foreign Minister Klemens von Metternich, also eventually joined the coalition after a series of unsuccessful mediation attempts. Napoleon, demonstrating his remarkable resilience, raised new armies and won several tactical victories in the spring of 1813. But the armies were inexperienced, he was short of cavalry after the Russian losses, and the coalition kept growing.

The Sequence of Napoleon's Fall

The decisive confrontation came in October 1813 at Leipzig, in Saxony, in a battle that the Germans would later call the Volkerschlacht — the Battle of the Nations. This was the largest battle in European history before World War I. Approximately 600,000 men were engaged on both sides over four days of fighting, from October 16 to 19, 1813. The coalition forces — Prussians, Austrians, Russians, and Swedes under various commanders — gradually encircled Napoleon's position and threatened to cut off his line of retreat. Saxon troops, who had been fighting for Napoleon, switched sides during the battle itself, an almost unprecedented act of battlefield defection. Napoleon managed an orderly retreat on the first day after the battle's conclusion, but the destruction of the bridge over the Elster River — blown up prematurely by a panicking French officer — trapped approximately 30,000 French soldiers in Leipzig, where most were killed or captured.

The Battle of Leipzig ended French dominance east of the Rhine. The Confederation of the Rhine dissolved as its member states defected to the coalition. Napoleon retreated into France and conducted a brilliant defensive campaign in the winter and spring of 1814, winning numerous battles against superior forces in the so-called Six Days Campaign and other engagements. But there were too many enemies and too few French soldiers. Coalition forces crossed the Rhine, advanced through France, and in late March 1814 captured Paris itself. Napoleon's marshals, seeing the hopelessness of the situation, persuaded him that further resistance was futile.

On April 6, 1814, Napoleon Bonaparte signed his abdication at the Palace of Fontainebleau, southeast of Paris. The Treaty of Fontainebleau, negotiated that same month, settled his fate. Napoleon would be permitted to retain the title of Emperor — but only of the tiny island of Elba, off the coast of Tuscany, which had a population of roughly 12,000 people. He was assigned an annual income of two million francs, which the French government largely failed to pay. He was permitted a small personal guard. His wife Marie-Louise and their son were not permitted to join him; the Austrian government, Marie-Louise's family, had other plans for her. Napoleon arrived at Elba in May 1814 and immediately began organizing his new miniature realm with characteristic energy, building roads, reforming the administration, reviewing his tiny army, and all the while keeping careful watch on events in France and at the Congress of Vienna.

The restoration of the Bourbon dynasty to the French throne was accomplished with notable speed. Louis XVIII, the brother of the executed Louis XVI, had been living in exile for most of his adult life — first in Koblenz, then in Verona, then in England, where he had spent years at Hartwell House in Buckinghamshire supported by British subsidies. He was not a popular figure and was widely regarded as somewhat dull and excessively careful, but he was the legitimate Bourbon heir, and legitimacy was the principle that the victorious coalition wished to uphold. Louis XVIII entered Paris in May 1814, following the allied armies. He moved into the Tuileries Palace and accepted the Constitutional Charter that Talleyrand and others had negotiated, which preserved some of the revolutionary and Napoleonic administrative and legal structures while restoring the monarchy. The First Treaty of Paris, signed on May 30, 1814, formalized the peace with France. Remarkably, France was treated with extraordinary lenience. The treaty restored France to its borders of January 1792 — that is, to a territory slightly larger than it had possessed before the Revolution, including Avignon and the Comtat Venaissin (formerly papal territories), portions of Savoy and the German-speaking territories on the left bank of the Rhine that France had absorbed in the 1790s. France was not required to pay reparations. French works of art looted from across Europe during the Napoleonic wars were (for the most part) not demanded back. The lenient treatment of France reflected the fundamental principle that would guide the Congress of Vienna: France was not to be permanently weakened to the point of humiliation, because a stable France, integrated into the European balance of power, was more valuable than a resentful and amputated France that might become a source of future instability.

The Setting and Social Scene of the Congress

Vienna was a natural choice for the great diplomatic gathering. It was the capital of the Austrian Empire, the Habsburg realm, whose sovereign — Emperor Francis I — was the host. Vienna had survived the Napoleonic wars without serious damage, unlike many European capitals. The city in 1814 was a baroque and neoclassical masterpiece, a city of approximately 250,000 inhabitants, renowned for its musical culture — Mozart, Haydn, and Beethoven had all lived and worked there — its coffee houses, its gardens, and the general air of sophisticated pleasure that characterized Viennese aristocratic life. The city had ample palaces, hotels, and apartments to house the hundreds of delegates, advisers, secretaries, and hangers-on who descended upon it from September 1814 onward.

The social spectacle was astonishing. Virtually every crowned head in Europe made an appearance, or sent their foreign ministers. The Austrian Emperor hosted the proceedings. Tsar Alexander I of Russia arrived and immediately became the center of society, cutting an impressive figure and charming everyone he met. King Frederick William III of Prussia attended. The Kings of Denmark, Bavaria, and Wurtemberg arrived. There were princes and dukes from German states too numerous to count. There were representatives of the old Italian states — of Piedmont-Sardinia, of Naples, of the Papal States. There were ambassadors from the Ottoman Empire and from the United States. The Viennese aristocracy and the imperial court threw themselves into entertaining on a scale that was extraordinary even by the standards of the ancien regime at its most extravagant.

The Congress of Vienna was famous above all for its social life. Balls, dinners, theatrical performances, hunts, excursions to the imperial estates at Schonbrunn, concerts and soirees filled the calendar with relentless density. Metternich organized balls at his townhouse on the Rennweg that became legendary. Princess Katharina Bagration, the beautiful and reckless widow of the Russian general killed at Borodino, maintained a rival salon that attracted some of the most important diplomatic figures. The Duchess of Sagan, Wilhelmine, with whom Metternich was conducting a passionate and anguished love affair throughout the Congress, hosted brilliant gatherings at her palace on the Singerstrasse. The Tsar himself, famously charming and given to dramatic gestures, danced with remarkable energy and held court in his apartments at the Palm Palace.

The famous phrase that captured the mood of the Congress — "Le congres danse, mais il ne marche pas," the Congress dances but does not advance — was attributed to the Prince de Ligne, a Belgian-born Austrian field marshal of eighty years who was himself one of the most distinguished guests in Vienna. He died during the Congress, in December 1814, before the final act was signed. The phrase captured both the brilliant social surface of the Congress and the frustrated impatience of those who wanted to see diplomatic progress more quickly than the great powers seemed to be making it. But in fact, the Congress was making progress, even if that progress was largely invisible to outside observers, because the actual diplomatic work was done not in plenary sessions but in private meetings, bilateral negotiations, and the gatherings of the great power representatives.

The great powers — Austria, Russia, Prussia, Britain, and (soon) France — dominated the proceedings. Smaller states were consulted when their specific interests were at stake, but the fundamental decisions were made by the inner circle. This was, in some ways, a revolutionary approach to international relations: rather than a peace conference in the traditional sense, where a victor dictates terms to a vanquished enemy, Vienna was a concert of great powers jointly managing the affairs of a continent. This concert model, with its assumption that the major powers had both the right and the responsibility to oversee the international order, would shape European diplomacy for decades to come.

The Key Figures: Metternich

Of all the statesmen who gathered at Vienna, Klemens Wenzel Lothar von Metternich-Winneburg-Beilstein stands out as the dominant personality — the master orchestrator whose vision, tactical skill, and sheer capacity for work shaped the outcome of the Congress more than any other single individual. To understand the Congress of Vienna, one must understand Metternich: his background, his ideology, his methods, and his obsessions.

Klemens von Metternich was born on May 15, 1773, in the city of Koblenz, at that time part of the Electorate of Trier in the Holy Roman Empire, into a family of Rhineland nobility that had served the Habsburg dynasty for generations. His father, Franz Georg Karl von Metternich, was an imperial official and diplomat. The young Klemens grew up in an aristocratic household suffused with the culture of the late Enlightenment — he learned French as a second language almost from birth, studied music and dancing with the same seriousness as classical languages, and absorbed the cosmopolitan culture of the high nobility for which Vienna was the spiritual capital.

Metternich pursued his education first at the University of Strasbourg, arriving there in 1788, just as the rumblings of the French Revolution were beginning to be felt — he would later write that he witnessed many of the early revolutionary events in Strasbourg firsthand, and that this experience confirmed him in a deep and visceral hostility to revolutionary upheaval. He then studied at the University of Mainz, where he completed his formal education. These university years were formative in multiple respects. He acquired a thorough grounding in diplomatic history and international law. He also acquired the habits of a man of the world — an ease in society, a capacity for charming conversation, an appreciation of feminine intelligence, and a self-confidence bordering on arrogance that would mark him throughout his life.

Metternich's early career was as an Austrian diplomat. In 1801 he was appointed to the Austrian legation in Dresden. In 1803 he was transferred to Berlin, where he observed the Prussian court at close quarters. Then, in 1806, he received the most important posting of his early career: Ambassador of the Austrian Empire to France, to the court of Napoleon Bonaparte at Paris. Metternich spent three years in Paris, from 1806 to 1809, and those three years were his education in power at the highest level. He met Napoleon repeatedly, studied his methods, charmed the Empress Josephine and the ladies of the imperial court, and — according to contemporary gossip — conducted a romantic liaison with Napoleon's sister, Caroline Murat, that gave him access to court gossip and indiscretions that a less personally attractive diplomat would never have obtained. He also observed Napoleon's system of imperial power in its mature form, and drew his own conclusions: that Napoleon's system, however brilliant, rested on a fundamentally unstable foundation, because it depended entirely on continuous military success and could not survive serious defeat.

In August 1809, following Austria's disastrous defeat by Napoleon at the Battle of Wagram, Metternich was appointed Foreign Minister of the Austrian Empire — the most important diplomatic post in one of Europe's two greatest continental powers. He was thirty-six years old. The task he faced was almost impossibly difficult. Austria had just been defeated, deprived of additional territory, and humiliated for the second time in four years (the first time being Austerlitz in 1805). The Austrian treasury was bankrupt. The army needed comprehensive reform. And Napoleon was at the height of his power, seemingly irresistible.

Metternich's response to this situation was a masterpiece of strategic patience and diplomatic cunning. He recognized that Austria could not defeat Napoleon alone or in the near future, and that attempting to do so prematurely would result in Austria's destruction. He therefore pursued two parallel strategies. The first was accommodation: he arranged the marriage of Napoleon to the Archduchess Marie-Louise, eldest daughter of the Austrian Emperor, in April 1810. This marriage, which cemented an alliance between France and Austria and represented a considerable personal sacrifice for the Habsburg family, gave Napoleon the dynastic legitimacy he craved (Josephine had failed to provide an heir) while giving Austria a breathing space in which to reform its military and finances. Metternich simultaneously maintained diplomatic relations with Russia and Britain, carefully nurturing the possibility of future alignment with those powers.

The second strategy was internal reform. Metternich worked closely with the head of the Austrian military reform effort, and with finance minister Johann Philipp von Stadion, to reorganize the Austrian army and stabilize Austrian finances. The goal was not immediate confrontation with Napoleon but preparation for the moment when Napoleon's overextension would create an opportunity.

That moment came after the Russian disaster of 1812. Metternich saw immediately that Napoleon's position had become fundamentally vulnerable. He spent most of 1813 in elaborate diplomatic maneuvering, offering to mediate between Napoleon and the coalition, conducting negotiations with all parties simultaneously, and gradually steering Austria toward the coalition while extracting maximum diplomatic advantage from Austria's position as the power whose adherence would be decisive. At the Congress of Prague in June 1813, Metternich presented Napoleon with Austria's conditions for remaining neutral — conditions that Napoleon rejected, reportedly telling Metternich that Austria's demands would strip him of everything he had gained. Metternich later described this meeting at length in his memoirs, portraying Napoleon as a man already consumed by the intoxication of power and incapable of the realistic self-assessment that might have saved him. The account is doubtless embellished by retrospective self-justification, but the fundamental dynamic it describes — Napoleon's inability to accept a reduced role in Europe — rings true.

Austria formally declared war on Napoleon in August 1813, joining the coalition. Metternich was appointed by Emperor Francis to lead the Austrian war effort, which he did with considerable diplomatic skill, maintaining the unity of the coalition against Napoleon's attempts to split it by offering individual peace terms to individual powers.

Metternich's ideology deserves careful examination, for it informed everything he did at Vienna and during the decades of his ascendancy afterward. He was, in the deepest sense, a conservative — not a reactionary who wished to turn back the clock to some pre-Enlightenment era of divine right absolutism, but a conservative in the classical sense of a man who distrusted sudden change, valued established institutions, and believed that political order was a fragile and precious thing that required careful maintenance. He had a particular horror of what he called "the revolution" — not merely the French Revolution as a specific historical event, but the spirit of revolutionary upheaval as a principle, the idea that existing political arrangements could be swept away and rebuilt on abstract rational foundations. He believed this idea to be false and destructive, because he believed that political institutions were the product of historical development and had roots in social habits, traditions, and relationships that could not simply be replaced by constitutions drawn up on blank sheets of paper.

Metternich also had a sophisticated understanding of the balance of power as the organizing principle of international relations. He did not believe that any single state should dominate Europe — including Austria. What he sought was a system in which no power was strong enough to threaten the independence of the others, in which the great powers would cooperate to maintain the peace, and in which the threat of combined opposition would deter any adventurist who might be tempted to upset the arrangement. He was not a nationalist — he was entirely indifferent to the romantic idea that each people should have its own state — and he was not a liberal — he was deeply hostile to constitutions, representative government, and press freedom as destabilizing forces. He was an aristocratic cosmopolitan who believed in order, hierarchy, and the management of power by those trained to exercise it.

At the Congress of Vienna, Metternich served simultaneously as Austrian Foreign Minister and as the host power's chief representative. This gave him structural advantages that he exploited to the fullest. He controlled the meeting rooms, the secretariat, the agendas of formal sessions, and — through his intelligence network, which employed agents who intercepted diplomatic correspondence and sometimes seduced the confidants of foreign delegates — the flow of information. His personal intelligence service was particularly active during the Congress, monitoring the communications of virtually all the foreign delegations. Princess Katharina Bagration and the Duchess of Sagan, the two women with whom Metternich was most intimately connected during the Congress period, both served (perhaps not entirely knowingly in all cases) as conduits of information from Russian and other circles. The Countess Dorothea von Lieven, wife of the Russian ambassador to Britain, was another important source of intelligence about British and Russian thinking, and she maintained a long and intellectually significant relationship with Metternich that extended well beyond the Vienna years.

Metternich's management of the Congress was his greatest achievement. He held the coalition together when it threatened to fracture — most dangerously over the Polish-Saxon question in late 1814 and early 1815, when Russia, Prussia, Britain, and Austria came close to open conflict over territorial arrangements in Central Europe. He kept France from being crushed beyond the point of future usefulness. He established the principles — legitimacy, balance of power, solidarity of the great powers — that gave the settlement its intellectual coherence. And he did all this while simultaneously managing the social spectacle of the Congress, conducting his amorous affairs, and maintaining the appearance of imperturbable confidence and easy superiority that was one of his most effective diplomatic tools.

The Key Figures: Talleyrand

Charles-Maurice de Talleyrand-Perigord, the French representative at Vienna, was arguably the most remarkable political survivor in European history. Born in 1754 into one of the oldest noble families in France, he had been directed into the church against his will (a foot deformity made a military career impossible) and had risen through the clerical ranks to become Bishop of Autun in 1788. He was not, by any account, a conventionally pious bishop; his personal life was scandalous, and his interests were political and financial rather than spiritual. He entered the Estates-General in 1789 as a representative of the clergy and immediately aligned himself with the reformist majority of the Third Estate. He proposed the nationalization of church property — a radical act for a bishop — and celebrated one of the early revolutionary masses at the Fete de la Federation in 1790.

By 1792, with the Revolution turning violent and radical, Talleyrand had maneuvered himself into diplomatic missions that conveniently kept him out of France during the Terror. He was in London in 1792 and 1793, then in the United States from 1794 to 1796, where he made profitable land speculations in Pennsylvania and observed the young American republic with interest. He returned to France in 1796, under the Directory, and became Foreign Minister in 1797 — a position he would hold, with one interruption, through the Consulate and the Empire under Napoleon. He was present at most of the major diplomatic events of the Napoleonic era: the negotiations of Campo Formio in 1797, Luneville in 1801, the Peace of Amiens in 1802, and the countless later treaties that reshaped Europe.

Talleyrand's relationship with Napoleon was complex and ultimately adversarial. He served the Emperor effectively as Foreign Minister through the years of French expansion, but he had serious doubts about Napoleon's strategy of permanent expansion and was already thinking about what might come after by the time of the Treaty of Tilsit in 1807. He resigned as Foreign Minister in 1807 and thereafter served Napoleon in lesser capacities while privately maintaining contacts with the Austrian and Russian courts that amounted to a form of treason against his emperor. He was the center of the royalist conspiracy that smoothed the Allied entry into Paris in 1814 and that managed the restoration of Louis XVIII — services for which the restored Bourbon monarchy rewarded him with the post of Foreign Minister, the position in which he represented France at Vienna.

Talleyrand's genius at Vienna consisted of taking a position that appeared hopeless — France was the defeated aggressor, excluded from the inner circle of the great powers — and converting it into a position of real diplomatic influence. He did this through the concept of legitimacy. Talleyrand argued that France under Louis XVIII was not the aggressor France of Napoleon, but the legitimate Bourbon monarchy restored to its rightful throne, a monarch whose interests were entirely consonant with those of the other legitimate monarchies of Europe. The revolutionary and Napoleonic regime that had overturned the established order was gone; France was again a responsible member of the European family of nations and deserved to be treated as such. This argument was self-serving but not illogical, and Talleyrand deployed it with all his considerable skill.

The immediate occasion for his breakthrough was the Polish-Saxon crisis of late 1814. When Russia and Prussia presented their demands for Poland and Saxony in terms that alarmed Britain and Austria, Talleyrand saw his opportunity. He allied France with Britain and Austria against Russian and Prussian demands, demonstrating that France could be a useful partner rather than a passive object of the great powers' decisions. As a result of this maneuver, France was admitted to the inner council of the great powers — the Committee of Five that became the de facto governing body of the Congress. Talleyrand had accomplished what seemed impossible: he had turned France from a defeated enemy into a respected participant in the peace settlement.

Talleyrand's famous maxim about foreign policy — that noninterference in the affairs of other states was a sacred principle, that legitimate governments had the right to determine their own affairs, and that any attempt to impose revolutionary change from outside was a violation of the law of nations — served him perfectly at Vienna, because it corresponded exactly to the principles that the other great powers were seeking to uphold. His self-interest and his stated principles happened to coincide.

The Key Figures: Castlereagh

Robert Stewart, Viscount Castlereagh, the British Foreign Secretary, was in many ways the most underappreciated of the great statesmen at Vienna. He lacked Metternich's personal brilliance and social ease, and he lacked Talleyrand's legendary wit and political cunning. He was a tall, handsome, somewhat stiff Anglo-Irish aristocrat who was not a particularly gifted speaker and who was widely disliked in Britain for his role in suppressing Irish rebellion and for his association with the Tory government's domestic repression. But he had a clear head, a thorough understanding of British strategic interests, and a genuine commitment to the construction of a stable European order.

Castlereagh's fundamental goal at Vienna was the establishment of a continental balance of power that would prevent any single state from dominating Europe — the traditional British strategic objective, which for a century had been directed against France but which now needed to be constructed anew to prevent a different kind of dominance. He was not particularly interested in restoring ancient dynasties for their own sake, and he was somewhat skeptical of the principle of legitimacy as an organizing concept. What he cared about was the balance — ensuring that no power was strong enough to threaten British interests or to dominate the continent.

Castlereagh operated under a significant constraint that Metternich and Talleyrand did not face: parliamentary accountability. The British Parliament and public opinion were real forces that he had to manage, and they were not always sympathetic to the kind of realpolitik commitments that the continental powers were making. This made him more cautious than he might otherwise have been about formal alliance commitments, and it was one of the reasons Britain's participation in the post-Vienna concert system was always more qualified than that of the continental powers.

The Key Figures: Tsar Alexander I

Tsar Alexander I of Russia was the most powerful single figure at the Congress of Vienna, in the sense that Russia had the largest army and had contributed most to Napoleon's defeat. But Alexander was also the most erratic and psychologically complex of the major figures. Born in 1777, educated partly by the Swiss philosopher and republican La Harpe, he combined a genuine philosophical idealism — he had absorbed Enlightenment ideas about liberty and constitutionalism — with autocratic instincts and a growing mysticism.

During the Congress, Alexander shifted between several different personas. At times he was the liberal champion, sympathizing with Polish nationalism and talking about constitutions and representative government for Poland and other territories. At other times he was the autocratic tsar defending Russian interests with unyielding firmness. Throughout, he was increasingly influenced by religious mysticism — the experience of seeing Moscow burned and then leading his armies in the defeat of Napoleon had given him a sense of divine mission that would eventually flower into the Holy Alliance project.

Alexander's most dangerous initiative at Vienna was his insistence on the creation of a large Kingdom of Poland under Russian sovereignty. He wanted the entire Duchy of Warsaw, the Napoleonic creation that had revived Polish statehood, to become a Kingdom of Poland with himself as king, with a constitution and a Polish army. This would have given Russia an enormous extension of power into Central Europe, bringing Russian influence to the borders of Prussia and Austria. Prussia was willing to accept this if it received all of Saxony in compensation. Austria and Britain were alarmed. The conflict nearly broke the Congress apart.

Other Key Figures

Karl August von Hardenberg was the Prussian State Chancellor, the chief Prussian representative at Vienna. He was partially deaf, which created sometimes comical misunderstandings in negotiations, and he lacked the brilliance of some of his counterparts. But he was a capable negotiator who generally worked in partnership with Austria in defending the balance-of-power principles against Russian expansionism. Wilhelm von Humboldt, the great scholar and educational reformer, accompanied him as a secondary representative and played an important role in the technical negotiations, particularly on German affairs.

Friedrich von Gentz served as the Congress's secretary and as Metternich's closest intellectual collaborator. Gentz was one of the finest political writers of the age — he had translated Edmund Burke's Reflections on the Revolution in France into German, and his own writings on the balance of power and the theory of international relations were widely influential. He was also dissolute, financially irresponsible, and given to the most extravagant pleasures of Viennese society. But his pen was invaluable in giving intellectual coherence and elegant formulation to the principles and decisions of the Congress.

The Principles of the Congress

The Congress of Vienna operated on the basis of several organizing principles, some explicitly articulated and some implicit in the nature of the negotiations. The most important were legitimacy, compensation, the balance of power, and what would later be called the solidarity of the great powers.

The principle of legitimacy, as formulated most influentially by Talleyrand, held that the legitimate rulers of European states — those dynasties and institutions that had held power before the revolutionary upheaval — had an inherent right to restoration. This principle served to justify the restoration of Bourbon rule in France, of Bourbon rule in Spain (though Ferdinand VII's subsequent behavior would test the limits of allied sympathy for legitimacy), of the House of Orange in the Netherlands, of the Pope in Rome, of the legitimate rulers of the various Italian states. It also served as a justification for resisting the claims of those whose power rested on revolutionary or Napoleonic origin — claims that could not be accommodated without undermining the principle that gave the entire settlement its moral basis.

The principle of compensation held that the great powers, which had contributed to Napoleon's defeat, deserved to receive territorial compensation commensurate with their sacrifices and their power. This principle could obviously conflict with legitimacy — the legitimate boundaries of many states were precisely the ones that the great powers wished to revise in their own favor — and much of the Congress's work consisted of managing this tension between the two principles. In practice, legitimacy was applied selectively: the great powers were entitled to compensation; smaller states had to accept the principle of legitimate restoration whether or not it served their specific interests.

The balance of power was perhaps the most fundamental operating principle of the Congress, even though it was less explicitly articulated as a principle than legitimacy was. Metternich and Castlereagh, the two statesmen most committed to a stable settlement, both believed that the primary threat to European peace came from any power seeking to dominate the continent. Their settlement was designed to prevent French dominance of the kind that had led to the Napoleonic wars, and also to prevent Russian dominance, which the expansion of Russia's power toward Central Europe threatened to produce. The balance of power principle guided the specific territorial arrangements: France was left large enough to be a significant power but not large enough to dominate; Prussia was strengthened along the Rhine as a counterweight to France; Austria was compensated in Italy and reorganized as a Central European power; Russia was checked by the restored buffer states of Poland and the Germanic powers.

The Specific Territorial Settlements

The territorial decisions made at the Congress of Vienna were extraordinarily complex, and the negotiations were conducted under conditions of constant pressure as different powers sought to maximize their gains. The final settlement, embodied in the Final Act of the Congress of Vienna signed on June 9, 1815, represented a series of compromises that left no power entirely satisfied but most powers at least minimally content.

France

France was treated with remarkable leniency at the Congress of Vienna itself — a leniency that reflected the dominant principle that France must be preserved as a viable great power rather than crushed into impotence. The First Treaty of Paris of May 1814 had already established France's borders as those of January 1, 1792, which were in fact slightly more generous than France's pre-revolutionary borders, as they included territories France had absorbed in the 1790s (including Avignon, parts of Savoy, and the left bank of the Rhine). France was not required to pay reparations and was not subjected to allied occupation. French art collections, largely looted from across Europe during the Napoleonic campaigns, were generally allowed to remain in Paris.

The Vienna settlement itself did not significantly alter France's territorial position, though it adjusted borders in a few minor respects. The moderation shown toward France reflected Metternich's and Castlereagh's strategic wisdom: a France that felt unjustly treated would be an unstable and dangerous France; a France integrated into the European system as a partner, even if a lesser partner for the moment, was far more valuable for the maintenance of peace.

The German Confederation

The German question was one of the most complex and consequential issues at the Congress. Before the Revolution, the territories of Germany — broadly defined as the German-speaking lands of Central Europe — had been organized as the Holy Roman Empire, a structure of bewildering complexity comprising several hundred sovereign and semi-sovereign entities: kingdoms, duchies, principalities, ecclesiastical territories, free cities, and various other jurisdictions. Napoleon had simplified this drastically: in 1806 he had dissolved the Holy Roman Empire entirely and organized most of the German states into the Confederation of the Rhine, a client state under French patronage. This reduced the number of German states from several hundred to about thirty-five.

The Congress of Vienna preserved much of Napoleon's simplification. The German Confederation (Deutscher Bund) established at Vienna comprised thirty-nine states — thirty-five individual princes and four free cities. The Confederation was not a unified German state and was not intended to become one. It was a loose union of sovereign states, bound together by a Federal Diet (Bundestag) that sat at Frankfurt under the permanent presidency of Austria. The Diet was not a legislature in any meaningful sense; it required unanimity on most important questions, which meant it was effectively powerless to act unless all member states agreed. Austria's presidency of the Diet gave it a formal precedence in German affairs, but the Confederation itself was so weak as an institution that this precedence was more symbolic than real.

The German settlement represented a compromise between several competing visions. Metternich wanted a loose confederation that would preserve Austrian predominance and prevent any German national movement from developing enough strength to challenge the existing order. Prussia wanted a more assertive German policy but was not yet capable of challenging Austrian leadership. Smaller German states wanted to preserve their sovereignty against both Austrian and Prussian encroachment. The resulting Confederation satisfied no one entirely but managed to prevent the German question from generating immediate crisis.

The Kingdom of the Netherlands

One of the most significant structural innovations of the Congress of Vienna was the creation of the United Kingdom of the Netherlands, combining the former Austrian Netherlands (Belgium) with the former Dutch Republic under the House of Orange. The rationale was straightforward: the Austrian Netherlands had been under Austrian sovereignty before the Revolution but were distant from the Austrian heartland and had been sources of constant trouble; the Dutch Republic had been under French domination; both territories formed a natural geographic unit in the Low Countries. United under a strong Protestant monarchy — the restored House of Orange, in the person of William I — the Kingdom of the Netherlands would serve as a substantial buffer state between France and the German states, and between France and Britain's continental interests.

The Belgian-Dutch union was in some ways the most obviously artificial creation of the Congress, combining two populations that differed in language (Dutch and French), religion (Protestant and Catholic), economic orientation (maritime trade and agriculture), and historical tradition. It survived until 1830, when Belgian revolution (partly inspired by the July Revolution in France) led to Belgian independence and the creation of a separate Belgian state — an outcome that the Congress's architects had specifically sought to prevent.

Piedmont-Sardinia

The Kingdom of Piedmont-Sardinia was strengthened at the Congress by the addition of the Republic of Genoa, which had been an independent republic for centuries and which Genoa's inhabitants resented losing. The strategic logic was similar to that of the Netherlands: Piedmont-Sardinia, placed between France and the Italian peninsula, would serve as a buffer against French expansion into Italy. The addition of Genoa increased the kingdom's resources and gave it an important port. Piedmont-Sardinia was also returned to the dynasty of the House of Savoy, which had ruled it before French annexation. This settlement would prove important in the longer run: it was from Piedmont-Sardinia, and specifically from the House of Savoy and its remarkable prime minister Camillo di Cavour, that Italian unification would eventually be directed.

Prussia

Prussia emerged from the Congress of Vienna considerably strengthened, though not as strong as Frederick William III had hoped. The most important Prussian gains were in the west and in the north. Prussia received the Rhineland — the German territory on the left bank of the Rhine that France had held since the 1790s — and parts of Westphalia. This was not what Prussia most wanted (Prussia's king had preferred a compact, contiguous expansion toward Saxony), but it proved historically transformative. By acquiring the Rhineland, Prussia became the custodian of the most industrializing region in Germany, the region that would, within decades, produce the coal and iron and industrial capacity that would make Prussia the dominant German state. Prussia also received most of Swedish Pomerania on the Baltic coast.

On the eastern question, Prussia received roughly three-fifths of the Kingdom of Saxony, whose king had remained loyal to Napoleon until the Battle of Leipzig and who was punished by partial despoliation of his kingdom. The Saxon king was allowed to retain his throne and the remaining two-fifths of Saxony — a compromise that satisfied almost no one but prevented the complete destruction of a legitimate German monarchy.

Austria

Austria emerged from the Congress with a substantially reorganized territorial base that reflected Metternich's strategic vision. Austria had possessed the Austrian Netherlands (Belgium) before the Revolution, but these distant territories had been a constant source of expense and difficulty; their loss to France and now their transfer to the new Kingdom of the Netherlands was a strategic gain in disguise. In exchange, Austria received compensation in Italy: Lombardy (northern Italy's richest province, centered on Milan) and Venetia (the former republic of Venice, extinguished by Napoleon, now revived under Austrian sovereignty). Austria also received the Illyrian Provinces along the Adriatic coast, Salzburg, and the Tyrol. The effect was to transform Austria into a primarily Central European power, with its center of gravity in the Danube basin and its Italian possessions reinforcing its position as the dominant power in Italy.

This reorganization was the work of Metternich's strategic intelligence. The Austrian Empire he built at Vienna was more compact, more defensible, and more coherent than the sprawling and diverse pre-revolutionary Habsburg dominions had been. But it also meant that Austria was deeply invested in the maintenance of Italian order — invested enough that any Italian national movement that challenged Austrian rule would be directly threatening to the Austrian state. This investment in Italian conservatism would prove one of the primary drivers of Austrian intervention in Italian affairs throughout the next half century.

The Polish Question

The fate of Poland was the most contentious single issue at the Congress of Vienna, and it came close to shattering the coalition. Poland had been partitioned three times in the eighteenth century, in 1772, 1793, and 1795, divided among Russia, Prussia, and Austria until it ceased to exist as an independent state. Napoleon had restored a semblance of Polish statehood in the form of the Duchy of Warsaw in 1807, drawing territory from the Prussian and Austrian shares of partitioned Poland. The Duchy had been a French client state and had provided Napoleon with enthusiastic Polish soldiers.

At the Congress of Vienna, Tsar Alexander proposed the creation of a Kingdom of Poland coextensive with the Duchy of Warsaw, to be placed under his personal rule as a constitutional monarchy. He was genuinely sympathetic to Polish nationalism — he had Polish friends and advisers and had made vague promises about Polish freedom. But his proposal would also extend Russian power hundreds of miles further into Central Europe. Prussia accepted this arrangement if it received all of Saxony in compensation. Austria and Britain were deeply alarmed by both demands — a Russian-dominated large Poland and a Prussian Saxony would represent a dramatic shift in the Central European balance of power.

The confrontation nearly became a war within the alliance. Castlereagh negotiated a secret defensive alliance between Britain, Austria, and France against Russia and Prussia in January 1815. This threat of confrontation, combined with continued diplomatic pressure, ultimately produced a compromise. Russia received the central and eastern portions of the Duchy of Warsaw as the Congress Kingdom of Poland, with Alexander as king and a constitution that was relatively liberal by the standards of the time. But the Congress Kingdom was considerably smaller than the entire Duchy of Warsaw: Prussia retained Poznan (the Grand Duchy of Posen) and Thorn, while Austria retained Galicia (the Austrian share of partitioned Poland). The result left all three partitioning powers disappointed: Russia did not get all of Poland, Prussia did not get all of Saxony, and Austria maintained only a tenuous buffer. The Kingdom of Poland, with its constitution and its promise of Polish autonomy, survived only until the Polish uprising of 1830, after which Alexander's successors progressively dismantled its constitutional institutions.

Sweden and Norway

Sweden's position illustrates the complex logic of compensation that governed the Vienna settlement. Sweden had lost Finland to Russia in 1809, a severe territorial loss that left Sweden weakened and resentful. At Vienna, Sweden was compensated not for Finland — Russia was not going to return it — but for Swedish Pomerania on the German Baltic coast, which was transferred to Prussia. In exchange, Sweden received Norway. Norway had been under Danish sovereignty but was transferred to Sweden by the Treaty of Kiel in January 1814, after Denmark, having backed Napoleon to the end, was punished by the victorious coalition. The Norwegians themselves were not consulted and resented the transfer; they briefly proclaimed independence and adopted a constitution in May 1814 before being compelled by Swedish military pressure to accept a union with Sweden, though the Norwegian constitution and parliament were preserved. This Norwegian-Swedish union lasted until 1905.

British Territorial Acquisitions

Britain sought relatively little European territory at Vienna, consistent with its traditional role as a maritime power primarily concerned with the continental balance of power rather than with European territorial expansion. What Britain did acquire was a significant set of strategically important colonial and naval positions. The Cape Colony (South Africa), seized from the Dutch during the wars, was retained. Ceylon (Sri Lanka), also Dutch, was retained. Malta, seized during the wars from the Knights of Malta and coveted by Napoleon as a Mediterranean base, was retained. The island of Heligoland, a small but strategically important island in the North Sea off the German coast, was retained from Denmark. British colonial acquisitions in the Caribbean and elsewhere were also largely preserved. These acquisitions consolidated British maritime and commercial supremacy in a way that no European territorial expansion could have matched.

Swiss Confederation

Switzerland was recognized as a perpetually neutral state, a status guaranteed by all the great powers. The Swiss Confederation was restored to nineteen cantons (later expanded to twenty-two) and guaranteed freedom from involvement in any future European conflict. Switzerland's neutrality proved durable: it has not been involved in a European war since 1815.

The Hundred Days: Napoleon's Return

The Congress of Vienna was still in session, its final act unsigned, when Napoleon Bonaparte escaped from Elba and landed on the southern coast of France on March 1, 1815, near the town of Antibes, with approximately 1,000 soldiers. What followed — the period known as the Hundred Days — was one of the most dramatic episodes in European history.

Napoleon's escape was the result of multiple failures. He had not been closely guarded; the responsibility for his custody was vague, and the British officer assigned to oversee his exile, Sir Neil Campbell, had been away from Elba on a personal visit to Florence at the time of the escape. Napoleon had been carefully watching events in France through his network of correspondents and had noted that Louis XVIII's government was growing increasingly unpopular, that the royalist reaction was alienating former Napoleonic officers and soldiers who feared for their pensions and honors, and that the Coalition was distracted by the quarrels at Vienna. He judged that the moment was opportune.

The Congress's reaction to news of Napoleon's escape was swift and decisive. On March 13, 1815, the representatives of the great powers signed a declaration condemning Napoleon as a disturber of the world's peace and placing him outside the protection of civil and international law — effectively declaring him an outlaw. This was a remarkable act, unprecedented in modern European diplomacy: the major powers formally declared a specific individual to be a criminal outside the law of nations. They immediately began organizing military forces to remove him from France.

Napoleon's march from his landing point near Antibes to Paris was the most extraordinary military promenade in history. Louis XVIII sent troops to stop him, but they defected to Napoleon instead, unit by unit, often without a shot being fired. The most dramatic episode was at Grenoble, where a line of soldiers blocked the road; Napoleon dismounted and walked forward alone toward their muskets, declaring: "If any of you will shoot his Emperor, here I am." The soldiers lowered their weapons and joined him. By the time he reached Paris on March 20, 1815, Louis XVIII had fled north to Ghent, and Napoleon entered the Tuileries to find the sheets on the royal bed still warm, as Louis had fled that very morning.

Napoleon immediately attempted to present himself as a reformed moderate — he claimed to accept the limits of constitutional monarchy, to renounce aggressive war, to seek peaceful coexistence with the other European powers. His former foreign minister and now bitter enemy Talleyrand was in Vienna rather than Paris, but other former servants rallied to him. The Constitutional Act (Acte Additionnel), drafted partly by Benjamin Constant, gave France a bicameral legislature and guaranteed civil liberties, though Napoleon's commitment to these provisions was widely doubted.

The allied response was military. Wellington was given command of the British and allied forces assembling in Belgium, and Field Marshal Gebhard Leberecht von Blucher commanded the Prussian armies. Napoleon had perhaps 125,000 veteran soldiers available for offensive action; the coalition planned to assemble armies totaling more than 700,000 men, but these would take weeks to gather. Napoleon's only hope was to strike quickly, to defeat the nearest allied forces before the full coalition could assemble, and then to hope that a dramatic victory might induce the powers to negotiate.

The Waterloo Campaign

Napoleon's strategy was to advance into Belgium and defeat Wellington and Blucher separately before they could unite. He crossed the Belgian frontier on June 15, 1815, with approximately 120,000 men. The campaign opened brilliantly: on June 16, the French won a tactical victory at Ligny, temporarily pushing the Prussians back, while Marshal Ney fought a bloody inconclusive battle at Quatre Bras against Wellington's forces. But Blucher, despite being unhorsed and nearly captured at Ligny, successfully withdrew northward rather than eastward — which meant the Prussians were still within supporting distance of Wellington rather than having been separated from him. Napoleon believed Blucher was retiring eastward and sent Marshal Grouchy with 33,000 men to pursue him, a decision that would prove catastrophic.

Wellington chose his position carefully. The ridge of Mont-Saint-Jean, near the village of Waterloo south of Brussels, provided an excellent defensive position — a long east-west ridge behind which Wellington could shelter his troops from artillery fire, with a reverse slope that concealed his dispositions from the French. Wellington stationed his forces along this ridge on the evening of June 17, as torrential rain turned the ground into deep mud that would significantly impair French cavalry and artillery movement the next day.

The Battle of Waterloo, fought on June 18, 1815, was one of the decisive battles of modern history. Napoleon delayed his attack until late morning, partly to let the ground dry enough to permit artillery movement, partly — according to some accounts — because he was unwell. This delay proved fateful. He had approximately 72,000 men; Wellington had about 68,000. But Blucher's Prussians, their line of retreat having been northward rather than eastward, were marching to Wellington's assistance and could reach the battlefield by mid-afternoon if they moved with speed.

The battle opened with a French attack on the fortified farm of Hougoumont on Wellington's right flank, intended as a diversion. Hougoumont held throughout the day — its garrison of British guards and Nassauers refusing to yield despite repeated attacks — and its defense tied down an enormous number of French troops. The main French attack came in the early afternoon, with d'Erlon's corps advancing in massive columns against Wellington's center and left. British musket volleys and artillery fire inflicted terrible casualties; a charge by the Union and Household Brigades of British heavy cavalry drove the attackers back, though the cavalry charged too far and suffered heavy losses in return.

The French cavalry attacks came in the mid-afternoon — massive charges by Ney's cuirassiers against the British squares on the ridge. Wellington's infantry formed into squares, the standard defensive formation against cavalry, and held. The French cavalry could not break the squares without infantry support, and the infantry was not brought up to support the cavalry. The charges continued for hours, inflicting losses on both sides but failing to break the British line.

By evening, the Prussian forces were arriving on Napoleon's right flank — first Bulow's corps, then Zieten's corps. Napoleon committed his last reserve, the Imperial Guard, in a final desperate assault on Wellington's center. The Guard had never been defeated in battle; its advance was expected to break the British line and turn the tide. But Wellington had concealed a division of British guards behind the ridge; they rose and delivered a close-range volley that shattered the lead battalions of the Imperial Guard. The Guard recoiled. When the cry went up across the French army — "La Garde recule!" (the Guard is retreating!) — it was enough to cause general panic and rout. Wellington ordered a general advance; the Prussians poured in on the French right; Napoleon's army dissolved into a fleeing mob.

Napoleon's defeat was complete. He was captured by the British and exiled to the island of Saint Helena in the South Atlantic, roughly 1,200 miles from the African coast — about as remote a place as the British government could find. He arrived in October 1815 and died there in May 1821, possibly of stomach cancer, though other causes including arsenic poisoning have been proposed.

The Second Treaty of Paris

Napoleon's escape and the Hundred Days ended the Congress of Vienna's period of relative lenience toward France. The Second Treaty of Paris, signed on November 20, 1815, imposed considerably harsher terms. France's borders were adjusted to remove several frontier fortresses that had been allowed in 1814. France was required to pay an indemnity of 700 million francs — a substantial sum. Allied occupation troops, approximately 150,000 men, were to remain in northern France for three to five years (eventually reduced to three years). The art looted by Napoleon was now more systematically demanded back, though not all of it was returned. France lost Saarland to Prussia and several Alpine territories to Piedmont-Sardinia and the Swiss Confederation.

The Second Treaty of Paris also saw the formal establishment of the institutional framework that would govern European diplomacy for the next generation. The Quadruple Alliance, concluded on November 20, 1815, formally bound Austria, Prussia, Russia, and Britain to the maintenance of the peace settlement and to collective action against any future attempt to restore the Napoleonic dynasty or to disturb the established order. The alliance was to be maintained by regular congresses at which the great powers would consult on European affairs.

The Post-Congress System: the Concert of Europe

The period from 1815 to approximately 1848 — and in some respects until 1914 — is characterized by historians as the era of the Concert of Europe, the international system established at Vienna and maintained through the collective action of the great powers. The Concert rested on several fundamental assumptions: that the great powers had a collective interest in maintaining the peace settlement; that they would consult regularly on matters affecting European order; that any power threatening to upset the settlement would face the combined opposition of the others; and that revolutionary movements within states — movements that threatened the internal political order as well as the international order — were also matters of concern for the Concert as a whole.

The Quadruple Alliance (which became the Quintuple Alliance when France was admitted in 1818 at the Congress of Aix-la-Chapelle) was the formal expression of this concert principle. The Congress of Aix-la-Chapelle (1818) was the first of several congresses at which the great powers met to manage European affairs. Its most important decision was the early evacuation of allied troops from France, two years before the treaty deadline, in recognition of France's satisfactory behavior under Louis XVIII.

The Holy Alliance

Simultaneously with the Quadruple Alliance, Tsar Alexander I proposed a separate declaration that became known as the Holy Alliance. This document, signed by Alexander, Francis I of Austria, and Frederick William III of Prussia in September 1815, committed the three monarchs to govern their states according to Christian principles, to treat each other as brothers, and to act in a spirit of Christian charity in international relations. The document was vague to the point of meaninglessness as a matter of international law, and Castlereagh privately described it as "a piece of sublime mysticism and nonsense." The Pope declined to sign, as the document seemed to place Protestant and Catholic monarchs on the same spiritual level. The British Prince Regent, acting on Castlereagh's advice, declined to sign on constitutional grounds — the British monarch could not make such commitments without parliamentary approval. The Ottoman Sultan was not invited to sign.

Despite its theological vagueness, the Holy Alliance became associated in the public mind with the conservative system that Metternich was constructing — the system of suppressing liberal and nationalist movements throughout Europe. Liberals and nationalists came to see the Holy Alliance as the symbol of reactionary oppression, though the actual instrument of that oppression was the Quadruple Alliance and the concert system rather than the Holy Alliance itself.

Metternich's Conservative System

The post-Vienna European order that Metternich built was designed not merely to maintain the international peace settlement but to suppress the domestic revolutionary forces — liberalism and nationalism — that he saw as the primary long-term threats to stability. This involved him in a system of internal repression within the German Confederation and in active opposition to liberal and nationalist movements throughout Europe.

The Carlsbad Decrees of 1819 were the most important expression of Metternich's conservative domestic policy in Germany. They were triggered by the assassination of the conservative playwright and Russian agent August von Kotzebue by a student nationalist, Karl Sand, in March 1819. Metternich used this incident to convene a meeting of representatives of the German states at Carlsbad, where he pushed through a set of measures that established censorship of the press and of university publications, provided for the inspection and regulation of universities to suppress liberal and nationalist teaching, dissolved student fraternities (Burschenschaften), and created a central commission to investigate revolutionary conspiracies across the German Confederation. These measures severely constrained intellectual freedom in Germany for a generation and became symbols of Metternich's reactionary system to liberal opinion across Europe.

The Congress System in Action

The concert system was tested by a series of revolutions in the early 1820s that threatened to overturn the Vienna settlements in Southern Europe. In 1820, revolutions broke out in Spain and in the Two Sicilies (southern Italy), in both cases liberal officers forcing the restoration of the constitution of 1812. In 1821, revolution broke out in Piedmont. The great powers responded through the congress mechanism.

The Congress of Troppau (October-December 1820) produced the Troppau Protocol, in which Austria, Prussia, and Russia asserted the right of the great powers to intervene in any state where revolution had occurred, for the purpose of restoring legitimate government. Britain and France refused to endorse this doctrine of intervention, with Castlereagh explicitly rejecting any general right of intervention — though Britain reserved the right to act in specific cases affecting its interests. The Troppau Protocol represented a significant hardening of the conservative principle: it was no longer merely that states should maintain their own legitimate governments, but that the great powers had a collective right to enforce legitimate government even within other sovereign states.

The Congress of Laibach (January-May 1821) authorized Austria to intervene in Naples to suppress the revolution there, which Austria did, restoring the absolutist rule of King Ferdinand I. Austria also intervened in Piedmont to suppress revolution there.

The Congress of Verona (October-December 1822) faced the question of Spain, where the constitutional revolution of 1820 had put Ferdinand VII under effective constitutional constraints. France, which had its own reasons for wanting to intervene in Spain — partly to demonstrate that a restored Bourbon France could play a great-power role — was authorized to invade Spain and restore Ferdinand VII to absolutist power. The French intervention of 1823 (the so-called Expedition of the Hundred Thousand Sons of Saint Louis) was successful militarily, though it created enormous bitterness among Spanish liberals.

The Greek War of Independence

The Greek War of Independence, which began in 1821, presented the concert system with a challenge it ultimately could not manage. The Greek revolt against Ottoman rule was, on the principles of the Vienna settlement, a revolutionary uprising against a legitimate sovereign — the Ottoman Sultan. By those principles, the great powers should have opposed it. And indeed, Metternich's inclination was to do exactly that, though he recognized the diplomatic difficulty of appearing to support Ottoman suppression of Christian Greeks.

But the Greek cause generated an enormous wave of liberal and romantic sympathy across Europe. The poet Byron famously died at Missolonghi in 1824 while supporting the Greek cause. Public opinion in Britain, France, and Russia was deeply sympathetic to Greece. And Russia had its own strategic interest in weakening the Ottoman Empire — an interest that conflicted with the principle of maintaining existing legitimate governments.

The congress system broke down over Greece. Britain and Russia, departing from the strict legitimacy principle, sided with Greece against the Ottomans, and at the Battle of Navarino in October 1827, a combined British, French, and Russian fleet destroyed the Ottoman and Egyptian fleet — an act of war against a state whose legitimacy the Vienna settlement had theoretically protected. Greece achieved independence by 1829, recognized by the great powers. The Greek settlement represented the first major breach in the Vienna system, the first case where the principles of liberalism and national self-determination overcame the principle of conservative legitimacy.

The Revolutions of 1830

The revolutions of 1830 represented a more general challenge to the Vienna settlement. In France, the Bourbon King Charles X — who had replaced the relatively moderate Louis XVIII in 1824 and had moved increasingly toward absolutist policies — issued a series of ordinances in July 1830 that suspended the press, dissolved the Chamber of Deputies, and restricted the electorate. Paris rose in revolt in the "Three Glorious Days" (Trois Glorieuses) of July 27-29, 1830. Charles X fled, and the constitutional monarchy of Louis-Philippe, Duke of Orleans, was established — a concession to liberalism that Metternich found deeply distressing, but which was accepted by the other powers as preferable to a republic or a return to the Napoleonic dynasty.

The French revolution of 1830 immediately inspired revolution in Belgium. The Belgian uprising against Dutch rule, ignited by a performance of the opera La Muette de Portici in Brussels in August 1830, rapidly became a general revolt against the Kingdom of the Netherlands that the Vienna settlement had created. The Dutch king appealed to the great powers for support. But Britain and France, the two most liberal of the great powers, supported Belgian independence rather than the restoration of Dutch sovereignty over Belgium. The Kingdom of Belgium was recognized as an independent state in 1831, with its neutrality guaranteed by the great powers — another significant modification of the Vienna settlement.

In Poland, the November Uprising of 1830 challenged Russian control of the Congress Kingdom. Polish patriots seized Warsaw and declared independence; Tsar Nicholas I (Alexander I had died in 1825 and been succeeded by his more conservative brother) responded with massive military force, suppressing the uprising and abolishing the Polish constitution and parliament that the Congress of Vienna had preserved. The Polish question — the question of whether Polish national aspirations would be recognized — would remain a destabilizing issue in European politics for the remainder of the century.

The Revolutions of 1848

The revolutions of 1848, the "Springtime of Nations," represented the most severe challenge to the Vienna settlement. In the space of a few weeks in February and March 1848, revolutions broke out across virtually the entire European continent. In France, the July Monarchy of Louis-Philippe was overthrown and a republic proclaimed. In the Habsburg Empire, revolution broke out in Vienna itself — forcing Metternich, of all people, to flee in disguise — in Hungary, in Bohemia, and in the Italian territories. In Prussia, revolution forced Frederick William IV to promise a constitution. In the German states generally, a Frankfurt Parliament met to attempt the construction of a unified, liberal German state. In Italy, revolutions broke out in Sicily, Naples, Piedmont, the Papal States, and the Habsburg territories.

For a brief period in the spring and summer of 1848, it seemed as though the entire Vienna settlement would be swept away. But the revolutions lacked coordination, were internally divided between moderate liberals and radical democrats, and faced the organized power of the great states once those states had recovered from their initial shock. By the end of 1849, most of the revolutions had been suppressed. In the Habsburg Empire, Russian military intervention helped crush the Hungarian revolution. Metternich's system was restored in its essentials, though Metternich himself never returned to power (he lived in exile in England and Belgium until 1851, then returned to Vienna, where he died in 1859 at the age of eighty-six).

The Long-Term Challenges: Bismarck and Nationalism

The Vienna settlement's fundamental vulnerability was its failure to accommodate the forces of nationalism that the French Revolution had unleashed. The settlement treated the political map of Europe as a matter for the great powers to arrange among themselves, according to strategic logic and dynastic legitimacy, with no reference to the linguistic, cultural, or historical identities of the populations being transferred or reorganized. This approach worked reasonably well for the major powers, whose national identities were more or less congruent with their state boundaries. But it created enormous tensions in the multinational empires — particularly the Austrian Empire — and in Germany and Italy, where national sentiment demanded unification into single states.

The definitive demolition of the Vienna settlement in Central Europe came through the work of Otto von Bismarck, Minister-President of Prussia from 1862 and Chancellor of the unified German Empire from 1871. Bismarck's wars of unification — the war with Denmark in 1864, the Austro-Prussian War of 1866, and the Franco-Prussian War of 1870-1871 — systematically overturned the Central European arrangements of Vienna. The exclusion of Austria from German affairs after 1866, the annexation of Alsace-Lorraine from France after 1870, and the proclamation of the German Empire in January 1871 represented a fundamental restructuring of the European order that Vienna had created. Metternich's German Confederation was gone, replaced by a powerful unified Germany that dominated Central Europe in a way that no Vienna statesman had intended or wanted.

The Congress of Vienna Compared to Versailles

One of the most important contexts for understanding the Congress of Vienna's achievement is its comparison with the Versailles Peace Settlement of 1919, which ended World War I. The contrast between the two settlements — one that produced nearly a century of great-power peace, the other that produced a catastrophic resumption of world war within twenty years — has generated an enormous historical literature and has become something of a paradigm case in the study of international relations.

Henry Kissinger, in his doctoral dissertation at Harvard and the book derived from it, A World Restored: Metternich, Castlereagh and the Problems of Peace 1812-1822, published in 1957, offered the most influential analysis of this contrast. Kissinger argued that the Vienna statesmen succeeded where the Versailles peacemakers failed because they understood that a legitimate international order required the willing participation of all the great powers, including the defeated power. The Congress of Vienna reintegrated France relatively quickly into the European system, treated France as a partner rather than a permanent enemy, and created a framework in which all the major powers had a stake in maintaining the peace. Versailles, by contrast, imposed a punitive peace on Germany that combined territorial amputations, enormous reparations, and the humiliating war guilt clause with the exclusion of Germany from the postwar international system. The result was a German state that was simultaneously weakened and embittered — too humiliated to accept the peace but not weakened enough to be incapable of challenging it.

Kissinger's analysis has been enormously influential in shaping how both historians and policymakers think about the Congress of Vienna and its lessons. It has also been criticized. Some historians have pointed out that the Vienna settlement's stability depended on the continued dominance of conservative aristocratic elites in all the major European states, and that once those elites were challenged by the forces of mass politics and industrialization, the system was always going to be overturned regardless of how well it had been designed. Others have noted that the Vienna settlement's failure to accommodate nationalism created the very resentments that eventually destroyed it — not unlike the way Versailles created resentments in Germany.

Legacy and Historical Assessment

The Congress of Vienna's legacy is contested but its achievement is undeniable. The settlement created the conditions for the longest period of general European great-power peace in modern history: from 1815 to 1914, there was no general European war involving all the great powers, a period of ninety-nine years. There were wars — the Crimean War of 1854-1856, the wars of Italian and German unification in the 1850s through 1870s, the Russo-Turkish War of 1877-1878 — but these were limited conflicts that did not escalate into general conflagrations involving all the major powers. The contrast with the twenty-year period before Vienna (almost continuous major-power warfare) and the thirty-year period after Versailles (two world wars) is striking.

From the perspective of liberalism and nationalism, however, the Vienna settlement was a failure or at least a deeply flawed achievement. It deliberately suppressed national self-determination in Germany, Italy, Poland, and elsewhere. It maintained reactionary governments that persecuted liberals and nationalists. Metternich's system was an explicit attempt to prevent the political modernization that liberalism demanded. The men of 1848, who rose against the Vienna order, were not wrong to see it as a system of oppression; and the eventual triumph of nationalism in Italy and Germany, and eventually in the smaller nations of Central and Eastern Europe, represented the delayed victory of the forces that Vienna had tried to suppress.

The synthesis between these two assessments is difficult to achieve but important to attempt. The Congress of Vienna created a stable international order that prevented catastrophic war for a century, and this achievement benefited everyone in Europe — liberals and conservatives alike — by maintaining the conditions in which economic development, cultural flowering, and gradual political reform could occur. At the same time, the settlement's hostility to self-determination and constitutional government imposed enormous human costs on the peoples it sought to control, and its eventual overthrow — partly violent, as in the revolutions of 1830 and 1848, partly through the wars of unification — was the necessary precondition for the political modernization that liberal progress required.

The Congress of Vienna also established the precedent for modern multilateral diplomacy. The congress system — the idea that the great powers should meet regularly to manage international affairs collectively — was a genuine innovation in international relations. It did not work perfectly, and it broke down repeatedly when the powers' interests diverged sharply. But the basic idea that major international crises should be managed through great-power consultation rather than through unilateral action or immediate war was a powerful and durable contribution to international practice. The Concert of Europe was the ancestor of the Concert of the Great Powers in the late nineteenth century, and ultimately of the League of Nations and the United Nations in the twentieth.

For students of Advanced Placement European History, the Congress of Vienna represents the culmination of the Napoleonic era and the beginning of the long nineteenth century. It is the moment when the revolutionary and Napoleonic disruption was resolved — imperfectly, conservatively, but durably — and when the framework of modern European international relations was established. The principles debated and contested at Vienna — legitimacy versus self-determination, balance of power versus collective security, great-power responsibility versus the rights of smaller states and peoples — are principles that remain at the center of international relations to this day. The men who gathered in Vienna's palaces and ballrooms in the autumn of 1814 were, despite their aristocratic conservatism and their hostility to the democratic tide, among the most consequential architects of the modern world.

The Congress of Vienna in Ap European History

For students preparing for the AP European History examination, the Congress of Vienna represents one of the most testable topics in the entire curriculum. Several key themes and interpretive frameworks deserve particular emphasis.

The tension between the principles of the Congress — legitimacy, balance of power, compensation, solidarity — and the forces that the Revolution had unleashed — nationalism, liberalism, popular sovereignty — is the central analytical framework for understanding nineteenth-century European history. Almost every major event between 1815 and 1871 can be analyzed as either an expression of or a challenge to the Vienna settlement.

The key figures — Metternich, Talleyrand, Castlereagh, Alexander I — represent distinct national interests and distinct worldviews. Essay questions on the AP exam frequently ask students to analyze the goals of these figures, the extent to which they achieved those goals, and the long-term consequences of their choices. Metternich is the most frequently tested of these figures, partly because his career extends from the Congress through the revolutions of 1848, giving him a sixty-year arc that illuminates the entire period.

The comparison between Vienna and Versailles is a classic AP essay topic. Students should be able to articulate clearly why historians like Kissinger have seen Vienna as more successful than Versailles, and also to present the critique of this view — that Vienna's success depended on suppressing nationalist and liberal aspirations that were legitimate and that eventually had to be accommodated.

The post-Vienna concert system — the Quadruple Alliance, the Holy Alliance, the Congress System, the Carlsbad Decrees, and the Congress of Troppau — should be understood as Metternich's attempt to translate the Vienna settlement into an ongoing mechanism for conservative management of European affairs. Students should know the dates and significance of the major post-Vienna congresses and understand why the concert system eventually broke down.

The longer-term consequences of the Vienna settlement — the revolutions of 1830 and 1848, the eventual triumph of nationalism in Germany and Italy through Bismarck and Cavour, and the fundamental restructuring of European order in 1870-1871 — complete the story of the Vienna era and are essential context for understanding the late nineteenth century and the road to World War I.

The Diplomatic Mechanics: How the Congress Actually Worked

Understanding the Congress of Vienna requires looking beyond the grand principles and the famous names to examine the actual mechanics of how the Congress conducted its business. The formal institutional structure of the Congress was minimal. There was no general plenary session in which all delegations assembled to debate and vote on the issues before them. The great powers had deliberately avoided creating such a structure, partly because they feared that a general assembly would give too much influence to the smaller states and would make it impossible to reach decisions efficiently.

The actual decision-making at Vienna took place in a series of overlapping committees and informal meetings. The core body was the Committee of Eight, which brought together the representatives of the eight powers that had signed the Treaty of Paris in May 1814: Britain, Austria, Russia, Prussia, France, Portugal, Spain, and Sweden. Below this stood the Committee of Five (later expanded to include France), which was the real inner council of the great powers and which made most of the substantive decisions. Then there were various specialized committees for specific issues: a committee on German affairs, a committee on Swiss affairs, a committee on the slave trade, a committee on the navigability of international rivers, and others. These committees reported to the Committee of Five, which in turn reported (notionally) to the full Congress, though in practice the full Congress simply ratified what the great powers had already decided.

The role of the secret police and intelligence services deserves particular attention. Metternich's intelligence apparatus, operating under the direction of Baron Franz von Hager, was the most sophisticated in Europe at the time. Mail going into and out of Vienna was routinely opened, read, copied, and resealed before delivery. The spy network extended into the households of foreign delegations, with servants recruited as informants. Metternich received daily reports of the content of intercepted diplomatic correspondence from all the major delegations. This gave Austria an enormous informational advantage over the other powers, since it allowed Metternich to know what his counterparts were thinking and planning before they told him officially. The British delegation eventually discovered that their mail was being intercepted and began using special couriers and ciphers for their most sensitive communications.

The social dimension of the Congress was not merely decorative; it was an integral part of the diplomatic process. The balls and dinners were occasions for informal conversations, for the testing of ideas before they were formally proposed, for the building of personal relationships and the assessment of character that diplomacy always requires. Metternich was a master of using social occasions for diplomatic purposes. A well-placed remark over dinner could float a proposal without formally committing Austria to it. A ball at which Tsar Alexander was seen in animated conversation with Metternich could send signals to the other delegations about the state of the Austro-Russian relationship. The social calendar was, in effect, part of the diplomatic calendar.

The role of women in the Congress deserves recognition. Several of the most politically important women in Europe were present in Vienna, and their salons were among the most important venues for informal diplomacy. Princess Katharina Bagration, whose salon at the Palm Palace attracted the Russian and Prussian delegations, provided Metternich with intelligence about Russian intentions. The Duchess of Sagan, Wilhelmine, who was simultaneously conducting a love affair with Metternich and another with the Tsar's representative Prince Alfred von Windischgratz, was at the center of a web of social connections that had real diplomatic significance. Princess Caroline Murat, Napoleon's sister and former Queen of Naples, arrived in Vienna hoping to preserve her kingdom (she had abandoned Napoleon in time to negotiate with the allies) and conducted an active campaign through social channels that ultimately failed. The Countess Karoline von Bernstorff, Madame de Stael, and other intellectually formidable women contributed to the Congress's cultural atmosphere and, more practically, to the circulation of diplomatic information.

The Final Act of the Congress

The Final Act of the Congress of Vienna, signed on June 9, 1815, nine days before the Battle of Waterloo, was a document of extraordinary scope and complexity. It ran to over one hundred and twenty articles and numerous annexes. It was the most comprehensive rearrangement of European territory since the Peace of Westphalia in 1648, and in many respects it was more thorough and more carefully conceived than Westphalia had been.

The Final Act addressed not only the great territorial questions — France's borders, the German Confederation, the Polish question, the Italian arrangements — but a remarkable range of secondary matters. It established rules for the diplomatic precedence of ambassadors, envoys, and ministers — a reform that had been needed for generations, as disputes over precedence at court had caused diplomatic incidents of absurd pettiness. It established the principle that the Rhine, the Danube, the Scheldt, and other international rivers should be open to the commerce of all nations, not subject to tolls or restrictions imposed by states along their banks — a major advance in international commercial law. It included a declaration against the slave trade — though without specific enforcement mechanisms, as the powers were not yet willing to do more than express their disapproval — marking the first formal international condemnation of this institution, largely at the insistence of the British delegation.

The clause on Switzerland confirmed its permanent neutrality and its inviolability in future European conflicts. The clauses on the Italian states confirmed the arrangements that gave Austria Lombardy and Venetia, restored the Pope to the Papal States, and recognized the various other Italian sovereigns. The clauses on Scandinavia confirmed Norway's transfer from Denmark to Sweden and Sweden's loss of Swedish Pomerania to Prussia.

The signing of the Final Act was, under the circumstances, a remarkable diplomatic achievement. The Congress had been in session for nine months. It had managed, despite numerous crises, to reach agreement on virtually every major outstanding question. The Polish-Saxon crisis, which had brought the congress to the verge of war in December 1814 and January 1815, had been resolved through compromise. The smaller states, though they had little real influence on the major decisions, had been consulted on matters affecting their specific interests. The document that emerged represented a genuine multilateral settlement — not simply a dictated peace imposed by the victors on the defeated, but a negotiated arrangement that all the great powers had signed and in which all of them had some stake.

Metternich's Personal Life and Character at the Congress

It would be impossible to understand Metternich's performance at the Congress without some attention to his personal life during this period, which was simultaneously brilliant and tumultuous. His marriage to Countess Eleonore von Kaunitz-Rietberg, whom he had married in 1795 in a match arranged by their families, was by 1814 a relationship of mutual respect and affection but not of romantic passion. Eleonore was an intelligent, devoted woman who managed the Metternich household with great efficiency and social skill, but she was not the equal partner in intellectual excitement that Metternich sought in his romantic relationships. He had had a series of affairs throughout his career, of which the relationship with Caroline Murat in Paris (1806-1809) was the most politically significant and the relationship with Wilhelmine, Duchess of Sagan, which overlapped with the Congress period, was the most emotionally consuming.

Metternich's relationship with Wilhelmine during the Congress was a source of both inspiration and distraction. Wilhelmine was one of the most fascinating women in Europe — brilliant, beautiful, multilingual, politically sophisticated, and entirely willing to use her social position for her own purposes. She was conducting multiple relationships simultaneously, and her refusal to commit exclusively to Metternich drove him to extremes of emotional desperation even as he was conducting the most important negotiations of his career. His diary and letters from this period reveal a man capable of writing, on the same day, a brilliant diplomatic analysis for the Emperor and a plaintive love letter to Wilhelmine complaining about her indifference.

This personal dimension is relevant not merely as biography but as evidence of how Metternich's famous icy rationality coexisted with an emotional volatility that he carefully concealed from the diplomatic world. The self-control that he projected in negotiations — the apparent indifference to pressure, the refusal to display alarm or irritation, the perpetual ease and elegance — was a constructed persona, maintained with considerable effort over deep wells of personal feeling. His ability to separate his diplomatic performance from his personal life, however imperfectly, was one of his greatest professional skills.

The Role of Money and Corruption

The Congress of Vienna was expensive on an almost incomprehensible scale. The cost of entertaining hundreds of delegations for nine months, of maintaining the courts of two emperors and a king in the style to which they were accustomed, of the balls and dinners and theatrical performances that filled the social calendar — all this fell primarily on the Austrian treasury, which could ill afford it. Contemporary estimates suggested that the Congress cost Austria somewhere between eight and twelve million florins, a sum that represented a substantial fraction of the annual state budget.

The expense was not merely for entertainment. Intelligence networks cost money — informants, couriers, cipher clerks, and the sundry arrangements for intercepting and reading foreign correspondence all required significant funding. The maintenance of the various delegations' households, with their servants, translators, and secretaries, added to the cost. The gifts and mementos exchanged among the participants — snuffboxes, jewels, portraits — were a traditional part of diplomatic practice, as was the provision of pensions and sinecures to useful individuals.

Corruption in the modern sense was pervasive in the diplomatic world of 1814, but the concept itself was somewhat different from modern understanding. The payment of subsidies to foreign officials, the provision of what would today be called bribes, and the arrangement of financial benefits for those who cooperated with one's diplomatic objectives were considered normal instruments of statecraft. Talleyrand was notorious for extracting large payments from those who sought his assistance — he had received substantial sums from the United States government during his time there in the 1790s, from various German princes, and from others. His personal fortune was enormous and was largely accumulated through the systematic exploitation of his diplomatic positions. This did not disqualify him from serving France at Vienna; on the contrary, his capacity for financial self-enrichment was seen as evidence of the practical intelligence that diplomacy required.

The Slave Trade Declaration

One of the most significant, if often overlooked, achievements of the Congress of Vienna was its declaration against the slave trade. The British government, under pressure from the abolitionist movement led by William Wilberforce and others, had abolished the British slave trade in 1807 and was deeply committed to inducing other powers to follow suit. Castlereagh pressed the issue at Vienna with considerable persistence, overcoming the resistance of Portugal, Spain, and France, all of which had significant economic interests in the continuation of the trade.

The Declaration of the Powers on the Abolition of the Slave Trade, included in the Final Act of the Congress, condemned the slave trade as repugnant to the principles of humanity and universal morality, and called for its universal abolition. It did not specify a timetable or enforcement mechanisms, which significantly limited its practical effect. Portugal and Spain were permitted to continue the trade south of the equator for a further period. France abolished the trade formally but did little to enforce the abolition. Britain continued to press the issue through bilateral treaties and through the Royal Navy's anti-slavery patrol, which intercepted slave ships in the Atlantic. The Congress declaration was thus more significant as a statement of principle than as an effective policy measure, but the statement of principle was itself historically important: it was the first formal international agreement acknowledging the illegitimacy of the slave trade.

The Economic Context of the Congress

The Congress of Vienna took place against a backdrop of severe economic disruption that shaped the discussions and influenced the settlement in ways that historians have sometimes underappreciated. Twenty-five years of continuous warfare had devastated the economies of Europe in multiple ways. Agricultural production had been disrupted by the movement of armies across farming land, by the requisitioning of horses and draft animals for military purposes, and by the conscription of agricultural laborers into military service. Trade had been severely disrupted by the Continental System and by the various blockades and counter-blockades that characterized Napoleonic economic warfare. Currencies had been debased in most countries as governments printed paper money to finance war expenditures. Governments were deeply in debt.

The end of the Napoleonic wars did not immediately improve the economic situation. The transition from a wartime to a peacetime economy was painful: the demobilization of hundreds of thousands of soldiers flooded the labor market with men who could not easily find work; the contraction of government spending removed a major source of demand; the removal of wartime protections exposed domestic industries to competition from more efficient producers, particularly from Britain, whose industrial revolution had given it enormous advantages in manufactures. The agricultural depression of 1815-1820, partly caused by the return of soldiers to farming and partly by the disruption of established trade patterns, created serious hardship across rural Europe.

These economic conditions shaped the political context in which the Vienna settlement was implemented. The social tensions generated by economic hardship — unemployment, price instability, the resentment of those who felt that the peace had not brought them the benefits they had been promised — were among the forces that fed the liberal and nationalist movements of the 1820s and 1830s. Metternich's conservative system was operating against an economic backdrop that was generating the very social discontent it was trying to suppress.

Smaller Powers and the Margins of the Congress

The experience of the smaller powers and delegations at the Congress of Vienna deserves attention, as it illuminates the realities of great-power management of international affairs that the Congress represented. The smaller German states — the members of what would become the German Confederation — were present at Vienna and were consulted on German affairs, but they had very little real influence on the outcome. The Committee on German Affairs, which negotiated the structure of the German Confederation, was dominated by Austria and Prussia, with the smaller states largely accepting what the great powers decided.

The Italian states were in an even weaker position. The Kingdom of Piedmont-Sardinia, restored under Victor Emmanuel I, was a significant second-tier power and had some influence on the Italian settlement, but the fundamental decisions about Italy — Austria's acquisition of Lombardy and Venetia, the restoration of the various Italian dynasties, the organization of the Italian peninsula — were made by the great powers without serious consultation of the Italians themselves. The Pope's representative, Cardinal Consalvi, lobbied energetically and with some success for the restoration of all the Papal States, which he largely achieved. But smaller Italian rulers had to accept what they were given.

The experience of Poland at the Congress illustrates most vividly the limits of what smaller peoples and nations could expect from the great-power management system. Polish representatives attended the Congress and presented their case for a restored, independent Polish state, citing Poland's contribution to the struggle against Napoleon and invoking the language of national rights. They were politely heard and comprehensively ignored. The fate of Polish territory was decided entirely by the three partitioning powers — Russia, Prussia, and Austria — according to their own interests, with the Congress Kingdom as a compromise that satisfied the partitioning powers more than it satisfied Polish aspirations. The Poles got a constitution and a parliament, which was more than they had expected, but they did not get independence, and the constitution and parliament were subsequently dismantled after the uprising of 1830.

The Intellectual Background of the Congress

The statesmen at Vienna operated in an intellectual environment shaped by specific theories of international relations, history, and political philosophy that deserve examination. The intellectual tradition most directly relevant to the Congress was the tradition of natural law and the law of nations, which had been developed by thinkers like Hugo Grotius, Samuel Pufendorf, and Emmerich de Vattel over the preceding two centuries. This tradition held that sovereign states were bound by a law of nations analogous to the natural law that bound individuals — a law that established norms for the conduct of war, the treatment of prisoners, the observance of treaties, and the rights of neutrals. The Congress's work on international rivers, diplomatic precedence, and the slave trade were all applications of this tradition.

The more immediately influential intellectual framework was Edmund Burke's critique of the French Revolution, which had been enormously influential among conservative elites across Europe. Burke had argued in his Reflections on the Revolution in France (1790) that the French Revolution represented a fundamental error: the attempt to reconstruct society on the basis of abstract rational principles, ignoring the accumulated wisdom of historical tradition and the organic development of political institutions. Burke's critique provided the conservative statesmen at Vienna with an intellectual vocabulary for their conservatism that went beyond mere self-interest. Metternich had absorbed Burke through Gentz's translation of the Reflections, and his own political writings echo Burke's themes throughout.

At the same time, the statesmen at Vienna were not simply reactionaries. They had absorbed Enlightenment ideas about rational administration, about the value of law and institutions, about the proper organization of diplomatic relations. Metternich's system of maintaining European order through consultation and collective action was itself a product of Enlightenment rationalism — an attempt to manage international affairs by reason rather than by force alone. The Holy Alliance, with its invocation of Christian brotherhood, was one response to the Enlightenment's erosion of traditional religious legitimacy; the Congress system, with its emphasis on rational management of shared interests, was another.

The Question of Italy at the Congress

The Italian settlement at the Congress of Vienna deserves more detailed treatment than the overview provided above, as it had profound consequences for the next half century of European history. The Italian peninsula in 1814 was divided among a large number of states of varying size and character. The most important were: the Kingdom of Piedmont-Sardinia in the northwest; the Duchy of Milan, which became the Austrian province of Lombardy; the Republic of Venice, which became the Austrian province of Venetia; the Duchy of Parma, given to the former Empress Marie-Louise as her personal domain; the Duchy of Modena, restored to the Este dynasty; the Grand Duchy of Tuscany, restored to a cadet branch of the Habsburg family; the Papal States, running across the center of the peninsula; and the Kingdom of Naples and Sicily, known as the Kingdom of the Two Sicilies, restored to the Bourbon dynasty in the person of Ferdinand I.

The Austrian position in Italy after Vienna was dominant but indirect. Austria directly controlled Lombardy and Venetia, which together constituted one of the wealthiest and most populous regions of the peninsula. Austrian princes or archduchesses ruled in Parma, Modena, and Tuscany. Austrian political and military influence extended over the other states through the network of treaties and alliances that Metternich carefully maintained. The result was that any nationalist or liberal movement in Italy that threatened the existing order threatened Austria directly, and Austrian military intervention was always available to suppress such movements.

This Italian settlement created the conditions for the Risorgimento — the Italian national movement for unification — that would eventually, through the agency of Piedmont-Sardinia and the political genius of Cavour and the military adventurism of Garibaldi, produce the unified Kingdom of Italy in 1861. The Vienna settlement had, paradoxically, both created the conditions that made Italian unification seem desirable (by placing so much of Italy under Austrian domination) and created the instrument through which unification would eventually be accomplished (by strengthening Piedmont-Sardinia as a viable independent state capable of eventually leading the nationalist movement).

The Historiography of the Congress

The historical assessment of the Congress of Vienna has gone through several distinct phases that reflect the changing political and intellectual contexts in which historians have written. In the immediate aftermath of the Congress, liberal and nationalist writers were largely hostile. The Congress was seen as a reactionary attempt to turn back the clock of progress, to restore the despotisms that the Revolution had rightly overthrown, and to deny the legitimate aspirations of peoples for self-governance and national unity. Giuseppe Mazzini, the Italian nationalist revolutionary, saw the Congress as the source of all the oppression that Italian patriots were fighting against. German liberals saw the Carlsbad Decrees, the direct product of Metternich's post-Vienna conservative system, as the symbol of political reaction. The liberal and nationalist tradition of the nineteenth century was almost uniformly hostile to the Congress and its makers.

By the early twentieth century, as it became possible to assess the Congress with greater historical distance, a more favorable view began to emerge. Harold Nicolson's The Congress of Vienna, published in 1946 in the shadow of World War II and the failed peace of Versailles, argued that the Vienna settlement had been a model of diplomatic wisdom compared to the Versailles settlement, and that the statesmen of 1814-1815 had shown far more understanding of what was needed for a durable peace than the peacemakers of 1919 had displayed. Nicolson's book established the comparative framework — Vienna versus Versailles — that has dominated discussion of the Congress ever since.

Kissinger's A World Restored, published in 1957, deepened this favorable assessment. Kissinger argued, with the learning of a professional historian and the insight of a future statesman, that the Vienna settlement's success lay in its understanding of the need for a legitimate international order — one in which all the major powers felt sufficiently satisfied with the settlement to have a stake in maintaining it. The lesson he drew for mid-twentieth-century American foreign policy was that the United States needed to be similarly attentive to the interests and sensibilities of its allies and potential adversaries, rather than seeking to impose its own vision of world order unilaterally.

Paul Schroeder's The Transformation of European Politics, 1763-1848, published in 1994, offered a more nuanced and in some respects more demanding favorable assessment. Schroeder argued that the Vienna settlement represented a genuine transformation in the conduct of international relations — a shift from the competitive, predatory politics of the eighteenth century to a more cooperative system in which the great powers accepted mutual constraints on their behavior in exchange for collective security benefits. He saw this transformation as more significant, and more deliberate, than previous historians had recognized.

More recent historiography has complicated all of these assessments. Scholars of the non-European world have pointed out that the Congress of Vienna's settlement was entirely Eurocentric — it dealt with Europe's problems on European terms and had no interest in the impact of its arrangements on the peoples of Asia, Africa, or the Americas who were affected by European colonialism. Feminist historians have examined the role of women in the Congress and recovered the stories of figures like Wilhelmine of Sagan whose influence on the diplomatic process had been systematically underestimated. Historians of Eastern European nationalism have emphasized the devastating consequences of the Congress's Polish settlement for Polish national aspirations. And historians of slavery and empire have highlighted the Congress's failure to achieve meaningful progress on the slave trade beyond a declaration of principle.

The Vienna Settlement and the Industrial Revolution

One dimension of the Congress of Vienna's long-term significance that is frequently underappreciated is its relationship to the Industrial Revolution. The Vienna settlement was negotiated in a pre-industrial world — or rather, in a world in which industrialization was occurring in Britain and beginning in parts of Belgium and France, but had not yet transformed the economic and military base of European power to the degree it would in the next generation. The statesmen at Vienna thought in terms of territory, population, and agricultural resources as the foundations of state power, because in 1814 these were indeed the primary bases of power.

Within a generation, this assumption was being overtaken by the reality of industrial capitalism. The coal mines of the Ruhr, the textile mills of Alsace and the Rhine valley, the railways that were beginning to transform transportation across Europe — these were creating new forms of wealth and power that the Vienna settlement had not been designed to accommodate. The Rhineland territories given to Prussia at Vienna, which Prussian statesmen had initially regarded as somewhat inferior to the compact Saxon territory they had originally wanted, turned out to contain the industrial core of the most dynamic economy in continental Europe. By the 1850s, Prussia's industrial power was already challenging Austria's traditional predominance in German affairs in ways that no statesman at Vienna had foreseen.

The interaction between industrialization and the Vienna settlement helps explain why the settlement lasted as long as it did but also why it ultimately could not survive. The industrialization of Europe created new social classes — industrial workers and industrial bourgeoisie — whose interests and identities did not fit neatly into the aristocratic framework of the Vienna order. The bourgeoisie wanted constitutional government and legal protections for property and contracts. The working class wanted social reform and eventually political rights. Neither of these demands could be accommodated within Metternich's conservative system, which was designed to preserve the aristocratic social order that existed in 1814.

The Scandinavia Question and Nordic Realignments

The reorganization of Scandinavia at the Congress of Vienna provides a case study in the logic of compensation and great-power management that shaped the entire settlement. Sweden in 1814 found itself in a paradoxical position: it had been one of the powers that contributed to Napoleon's defeat, yet it had suffered significant territorial losses during the Napoleonic era and needed to be compensated in a way that satisfied its government and its new ruler.

The ruler in question was Jean-Baptiste Bernadotte, one of Napoleon's marshals, who had been elected Crown Prince of Sweden in 1810 by the Swedish Riksdag, which was searching for a strong military leader capable of defending Sweden against Napoleon and against Russia. Bernadotte, who took the Swedish name Karl Johan, proved to be one of the most capable political improvisers of the age. He quickly determined that Sweden could not recover Finland, which Russia had seized in 1809, and that Sweden's best strategy was to join the anti-Napoleon coalition and seek compensation elsewhere — specifically in Norway, which belonged to Denmark. He pursued this strategy with considerable success, contributing Swedish military forces to the campaigns of 1813-1814 and securing at the Treaty of Kiel (January 1814) the transfer of Norway from Denmark to Sweden.

The Norwegian population reacted to this transfer with indignation. In April 1814, Norwegian politicians and prominent citizens convened at Eidsvoll and drafted one of the most liberal constitutions of the era, establishing a constitutional monarchy with a strong parliament (the Storting). They elected Prince Christian Frederick of Denmark as king and declared Norwegian independence. This was a direct challenge to the authority of the Vienna settlement, which was still being negotiated, and to the Treaty of Kiel, which the great powers had accepted.

Sweden's response was a brief military campaign in the summer of 1814, which forced the Norwegians to negotiate. The resulting Convention of Moss (August 1814) and the subsequent union established a personal union between Sweden and Norway under the Swedish king, but preserved the Norwegian constitution and parliament virtually intact. Norway had its own government, its own laws, its own institutions — only foreign policy and military affairs were shared with Sweden. This solution, endorsed by the Congress of Vienna, was in many ways a model of what moderate constitutional arrangements could achieve: the Norwegian constitutional tradition was preserved and flourished, and the Norwegian-Swedish union lasted until 1905 without serious conflict.

Spain and the Peninsular Legacy

Spain presented the Congress with particular difficulties because the situation in the Iberian Peninsula was tangled in ways that no simple application of legitimacy could unravel. The Spanish Bourbon dynasty — Ferdinand VII — had been imprisoned by Napoleon and replaced by his brother Joseph Bonaparte as King of Spain in 1808. The Spanish people had responded with a brutal and prolonged guerrilla war — the Peninsular War — that had tied down enormous French forces and contributed significantly to Napoleon's eventual defeat. The guerrillas fought partly for their legitimate king Ferdinand and partly for the liberal constitution that the Spanish Cortes had drafted at Cadiz in 1812, one of the most progressive constitutional documents of the era.

When Ferdinand VII was restored to the Spanish throne in 1814, he promptly abolished the Cadiz constitution and restored absolutism, imprisoning many of the liberal constitutionalists who had fought for his restoration. This outraged liberal opinion across Europe and demonstrated the gap between the principle of legitimacy — which supported the Bourbon restoration regardless of Ferdinand's conduct — and the aspirations of the people who had fought for that restoration. The Congress of Vienna, committed to legitimacy, could do nothing about Ferdinand's behavior: he was the legitimate king of Spain, and his domestic arrangements were his own business.

The Spanish situation was thus already poisoned before the Congress concluded. The revolution of 1820, which forced Ferdinand to restore the Cadiz constitution, was in part a reaction to six years of Bourbon absolutism — and the subsequent French intervention in 1823 to restore Ferdinand's absolutist authority illustrated how far the great powers were willing to go to maintain the legitimacy principle even against the explicit wishes of the Spanish people.

Russia's Long-Term Trajectory After Vienna

The Vienna settlement shaped Russia's position in European affairs in ways that had long-term consequences extending well beyond the nineteenth century. The Congress Kingdom of Poland, with Alexander as king, gave Russia a more direct stake in Central European affairs than it had previously possessed. The Polish constitution, which Alexander genuinely intended to honor initially, made Russia nominally a constitutional monarchy in its Polish territory even as it remained an autocracy in Russia proper. This anomaly was deeply uncomfortable for Russian conservatives and was one of the reasons Alexander's later policies became increasingly authoritarian.

The Holy Alliance, which Alexander had proposed, reflected his genuine conviction that Christian brotherhood could be the basis of international order. But the Holy Alliance quickly became identified with Metternich's conservative suppression of liberalism, which was not what Alexander had originally intended. Alexander himself oscillated between liberal impulses — he authorized Mikhail Speransky's constitutional reform projects for Russia itself in 1819, though he ultimately drew back from implementing them — and autocratic instincts. His death in December 1825 was immediately followed by the Decembrist uprising, when liberal Russian officers attempted to prevent the succession of the conservative Nicholas I. The Decembrists were suppressed, and Nicholas I's reign represented a decisive turn toward Russian autocracy, abandoning the constitutional experiments of the Polish Congress Kingdom and the liberal gestures of Alexander's earlier reign.

Russia's position after Vienna was thus one of enormous power combined with deep internal conservatism and a growing sense of being at odds with the liberal direction that Western European politics was taking. The doctrine of the third section — the Russian political police established by Nicholas I — and the general system of surveillance and censorship that characterized Russian governance after 1825 were the Russian equivalents of Metternich's Carlsbad Decrees. Both represented attempts to suppress liberal and nationalist forces that the Vienna settlement had failed to accommodate, and both would ultimately prove insufficient against those forces.

The Congress and Ottoman Europe

The Congress of Vienna's relationship with the Ottoman Empire and with the Balkan peoples under Ottoman rule deserves examination, as it illustrates the geographic and ideological limits of the settlement. The Ottoman Empire was a member of the anti-French coalition and had sent representatives to Vienna, but it was not admitted to the inner council of the great powers. The settlement did not directly address the situation of the Christian peoples — Greeks, Serbs, Romanians, Bulgarians — living under Ottoman rule, because the legitimacy principle applied to the Ottoman Sultan as much as to any European monarch, and any attempt to challenge Ottoman sovereignty over its Balkan subjects would have violated the principle the entire settlement was built upon.

This left the Balkan Christians in a paradoxical situation. The Serbian uprising of 1804, which had achieved a degree of Serbian autonomy from the Ottomans before being suppressed, demonstrated that nationalist self-determination was a force in the Balkans as much as in Poland or Germany. The Greek War of Independence that began in 1821 would demonstrate it more dramatically. But the Vienna settlement had no framework for accommodating Balkan nationalism, and its principles actively discouraged it.

The eventual breach of the Vienna principles over Greece — when Britain, France, and Russia intervened on the side of Greek independence — was in retrospect inevitable. Liberal public opinion in the Western powers was simply not going to permit the suppression of Christian Greeks by Muslim Ottomans, whatever the theoretical principles of the Vienna system demanded. The Navarino intervention of 1827 was the moment when sentiment overcame principle, and it marked the beginning of the end of the concert system as Metternich had conceived it.

The Congress and Modern International Law

The Congress of Vienna made several specific contributions to the development of modern international law that deserve recognition. The Declaration on the Free Navigation of International Rivers established a principle that rivers crossing multiple national boundaries should be open to the commerce of all nations, not subject to tolls or restrictions imposed by individual riparian states. This principle was applied specifically to the Rhine and the Meuse, and was eventually extended to other international rivers. It represented a significant advance in international economic law and established a precedent that was applied to later international river commissions, including the Danube Commission established in 1856.

The regulation of diplomatic ranks and precedence established at Vienna remained the basis of diplomatic practice until the Vienna Convention on Diplomatic Relations of 1961. The Congress established four classes of diplomatic agents — ambassadors and papal legates, envoys extraordinary and ministers plenipotentiary, ministers resident, and charges d'affaires — and established rules for determining precedence within each class. These rules ended the constant disputes about precedence that had disrupted diplomatic practice for centuries.

The Congress's treatment of various territorial and boundary questions also contributed to the development of international law in areas such as the rights of national minorities, the status of personal unions between states, and the legal personality of international organizations. The guarantee of Swiss neutrality, in particular, established a precedent for the concept of permanent neutrality as a recognized status in international law.

The Cultural and Artistic Dimensions of the Congress

The Congress of Vienna took place during a remarkable moment of cultural transition in European life. The neoclassicism that had dominated European art, architecture, and literature since the mid-eighteenth century was giving way to Romanticism — a movement that prized emotion, nature, historical imagination, and individual genius over the rational order and formal discipline of classicism. This cultural transition was not unrelated to the political upheavals of the era: just as the Revolution had challenged the rational order of the ancien regime, Romanticism challenged the aesthetic order of the Enlightenment.

Vienna in 1814 was a center of this cultural ferment. Ludwig van Beethoven, the greatest musical genius of the age, was living in the city and composing his late works — music of unprecedented emotional depth and complexity. His Seventh Symphony, which premiered in December 1813 in a concert benefiting soldiers wounded at the Battle of Hanau, had been a sensation. Beethoven's Wellington's Victory, composed to celebrate the British victory at the Battle of Vittoria in 1813, was performed at a gala concert during the Congress period. The composer's increasingly difficult personality and his progressive deafness made him a somewhat challenging presence in Viennese musical society, yet his music embodied something of the same restless energy and grandeur that the Congress was attempting to contain and discipline.

The visual arts also left a record of the Congress. The portraitists of Vienna worked overtime to record the faces of the assembled dignitaries. The most famous representation of the Congress itself is the group portrait by Jean-Baptiste Isabey, depicting the principal delegates gathered around a table, which was engraved and widely circulated and became the iconic image of the event. Isabey, who had been the court painter of Napoleon, managed the transition to the restored Bourbon court with the same facility for survival that Talleyrand had shown in the political realm — a testament to the way in which the cultural world, like the diplomatic world, had to find ways to bridge the divide between the Napoleonic era and the Restoration.

The literary culture of the Congress period was similarly transitional. The Romantic movement in Germany — represented by the Schlegel brothers, Novalis, and Schleiermacher — had emerged partly as a response to the French cultural dominance of the Napoleonic era, asserting a distinctly German cultural identity rooted in history, myth, and folk tradition. The same impulse that produced the Grimm brothers' collection of German fairy tales (published in 1812) and Friedrich Schlegel's lectures on the history of literature was simultaneously a cultural nationalist phenomenon and an aesthetic revolution. These currents of cultural nationalism ran parallel to and reinforced the political nationalism that the Vienna settlement was attempting to suppress.

Napoleon's View of the Congress

What did Napoleon himself make of the Congress of Vienna, from his vantage point first on Elba and then on Saint Helena? His dictated memoirs give some sense of his view. He was contemptuous of the settlement and insisted that it would not last, that the forces of nationalism and popular sovereignty that he claimed to have championed could not be permanently suppressed by the conservative restoration. He was partly right: the liberal and nationalist movements that challenged and eventually overturned the Vienna order were indeed in large part the product of the political and social changes that the Revolutionary and Napoleonic era had brought about.

But Napoleon's retrospective self-justification also contained a significant element of self-delusion. He presented himself as the champion of liberal principles and national rights who had been defeated by reactionary conservatives — forgetting or ignoring his own increasingly autocratic methods, his suppression of press freedom and political opposition in France and the occupied territories, his exploitation of the satellite states for French imperial purposes, and the enormous human cost of his wars. The liberal and nationalist movements of the nineteenth century drew on the legacy of the French Revolution, but they were also in part a reaction against the Napoleonic version of that legacy, which had demonstrated how easily the language of liberty could be used to justify imperial conquest.

Conclusion

The Congress of Vienna was not a perfect peace. It was designed by conservatives to serve conservative ends, and its architects would not have been surprised by the liberal and nationalist critique that subsequent generations leveled against it. What is remarkable is not the congress's ideological limitations but its practical achievement: the construction of an international order that managed to contain great-power conflict for the better part of a century, and that provided the framework within which the remarkable economic, cultural, and political development of nineteenth-century Europe took place.

Metternich, Talleyrand, Castlereagh, and their colleagues were not visionaries. They did not foresee the age of nationalism, the age of democracy, or the age of industrialism that their settlement would have to accommodate or fail to accommodate. They were practical men, deeply experienced in the management of power, who understood the specific problem they faced — the reconstruction of European order after the catastrophe of the revolutionary and Napoleonic wars — and who addressed it with intelligence, patience, and considerable diplomatic skill. Their work deserves to be judged by what they intended to accomplish: a stable peace that would protect Europe from the kind of catastrophic general war that had devastated it between 1792 and 1815. By that standard, the Congress of Vienna was among the most successful diplomatic gatherings in European history.

The settlement they created was imperfect, conservative, and ultimately could not survive the forces it sought to contain. But for the century it endured — or was gradually modified and accommodated — it provided Europe with a framework for peaceful competition and occasional cooperation among states that was itself a remarkable political achievement. The statesmen of Vienna built better than they knew, and the world they created, for all its injustices and limitations, was more ordered and less catastrophically violent than the world that had preceded it. For students of European and world history, the Congress of Vienna remains indispensable — a case study in the art of the possible, in the management of great-power relations, and in the complex relationship between political order and human aspiration. It remains an essential subject of study for any student of European history, international relations, or the making of the modern world.

The Congress of Vienna and the Twenty-First Century

Students sometimes ask why the Congress of Vienna continues to be studied with such intensity in the twenty-first century, at a distance of more than two hundred years. The answer lies in the continuing relevance of the questions the Congress was attempting to answer. How should international order be constructed after a period of catastrophic violence? How can the great powers be induced to cooperate in managing international affairs rather than competing destructively? How should the interests of powerful states be balanced against the rights of smaller states and peoples? What is the proper relationship between the principle of state sovereignty and the collective responsibility of the international community to prevent mass atrocity and aggression?

These questions are not abstractions. They were asked at the Congress of Vienna in 1814-1815. They were asked again at the Paris Peace Conference in 1919. They were asked again at the San Francisco Conference that created the United Nations in 1945. They are being asked in the twenty-first century as the international community confronts new forms of great-power competition, new threats to international order, and new demands from peoples who feel that their identities and rights are being ignored by the managers of the international system.

The Congress of Vienna's answers to these questions were imperfect — conservative, Eurocentric, hostile to nationalism and popular sovereignty, limited in their geographic scope and their humanitarian ambition. But the framework the Congress created — great-power consultation, balance of power, the maintenance of international norms through collective action — has proven more durable and more adaptable than its creators could have imagined. Modified and extended by generations of statesmen and diplomats, updated to accommodate democracy, nationalism, and eventually decolonization, the Concert of Europe evolved into the international order we inhabit today. Understanding its origins at the Congress of Vienna is therefore not merely an exercise in historical scholarship; it is essential background for understanding the world in which we live.

Sources

www.countryreports.org

library.lol (Henry Kissinger, A World Restored: Metternich, Castlereagh and the Problems of Peace 1812-1822, Houghton Mifflin, 1957)

www.napoleon.org/en/history-of-the-two-empires/articles/congress-of-vienna-1814-1815

www.loc.gov/collections (Adam Zamoyski, Rites of Peace: The Fall of Napoleon and the Congress of Vienna, Harper Press, 2007)

www.newworldencyclopedia.org/entry/Congress_of_Vienna

www.jstor.org (Harold Nicolson, The Congress of Vienna: A Study in Allied Unity 1812-1822, Constable, 1946)