Tilsit 1807: Napoleon and the Creation of the Duchy of Warsaw

When Napoleon and Alexander I met at Tilsit in the summer of 1807, Poland had been absent from the political map of Europe for twelve years. The Third Partition of 1795 had divided the remaining territories of the Polish-Lithuanian Commonwealth between Russia, Prussia and Austria, while the abdication of Stanisław August Poniatowski brought the Commonwealth itself to an end. Yet on 7 July 1807, in the treaty concluded between France and Russia, the words “Duchy of Warsaw” appeared in an international settlement. Two weeks later Napoleon granted the new state a constitution.

The Duchy of Warsaw was not the restoration of the Polish-Lithuanian Commonwealth, nor did Napoleon recognise an independent Kingdom of Poland. Its territory represented only part of the lands lost in the Partitions, its ruler was the King of Saxony, and its survival depended heavily upon French military power. Nevertheless, Tilsit reversed one of the central political consequences of the Partitions. Polish territory again possessed its own government, army, parliament, administration and legal system. For the generation that lived through 1795, the difference was immense.

Understanding the creation of the Duchy therefore requires looking beyond the familiar image of Napoleon and Alexander meeting on a raft on the River Niemen. The settlement made at Tilsit was the result of the destruction of Prussian military power, a Polish rising behind the advancing French armies, several months of improvised Polish government, and Napoleon's attempt to reconcile Polish expectations with his need to reach an accommodation with Russia. The state that emerged from that compromise lasted only eight years, but it transformed the political history of the Polish lands and provided an institutional bridge between the Commonwealth destroyed in 1795 and the Kingdom of Poland created in 1815.

Poland after the Partitions

The disappearance of Poland in 1795 did not end Polish political activity. Polish officers and political exiles continued to look towards revolutionary France, most famously through the Polish Legions formed under Jan Henryk Dąbrowski in Italy from 1797. Józef Wybicki's song for Dąbrowski's legionaries, later the Polish national anthem, expressed an idea that would become central to Polish hopes during the Napoleonic era: political restoration might follow military participation in the wars reshaping Europe.

For much of Napoleon's rise, however, those hopes remained uncertain. France could make use of Polish soldiers without committing itself to rebuilding Poland, while any serious restoration of the Commonwealth would have required overturning settlements involving all three partitioning powers. Russia in particular regarded the territories acquired from Poland as part of its imperial sphere, and Napoleon had little reason to create a permanent obstacle to a future accommodation with Alexander I.

The situation changed dramatically in 1806. Napoleon's victories at Jena and Auerstädt on 14 October shattered the Prussian army and opened Prussian-controlled Polish territory to French occupation. Warsaw itself had belonged to Prussia since the Third Partition. The collapse of Prussian authority therefore presented Polish political leaders with an opportunity that had scarcely seemed possible a few months earlier.

On 3 November 1806 Dąbrowski and Wybicki issued an appeal from Berlin calling upon the Poles to support Napoleon. Their proclamation deliberately avoided demanding guarantees from the Emperor. Instead, it urged Poles to demonstrate through action that they remained capable of political existence. Jarosław Czubaty has emphasised how rapidly this appeal resonated in the former Polish territories under Prussian government, where Napoleon's advance released political expectations created during the final decades of the Commonwealth.[1]

Polish forces were raised and local institutions began to reappear as the French advanced. In January 1807 Napoleon established a Governing Commission, the Komisja Rządząca, to administer the occupied Polish territories. Its members included men whose careers linked the new regime directly to the political world of the late Commonwealth, among them Stanisław Małachowski, Marshal of the Four-Year Sejm, Stanisław Kostka Potocki, Józef Wybicki and other prominent Polish political figures.[1]

The symbolism was powerful. Małachowski had presided over the Sejm associated with the Constitution of 3 May 1791. Wybicki belonged to the generation that had experienced the collapse of the Commonwealth and then attempted to recover Polish political independence through Napoleon. Before the Duchy of Warsaw formally existed, a recognisably Polish administration was therefore already operating in territory wrested from Prussia.

This is an important stage in the history of the Duchy because the state was not created on completely empty ground by a single diplomatic document at Tilsit. During the winter and spring of 1806–1807, institutions, military forces and political expectations were already being assembled. Tilsit gave a territorial and international form to something that had begun to develop during the campaign itself.

From Prussian collapse to Friedland

Napoleon's defeat of Prussia did not immediately end the war. Russian armies continued the struggle in East Prussia, producing some of the hardest fighting of the campaign. The Battle of Eylau in February 1807 was exceptionally bloody and inconclusive, but on 14 June Napoleon decisively defeated the Russian army at Friedland.

Friedland made negotiation unavoidable. Alexander I requested an armistice, and Napoleon and the Russian emperor met on 25 June near Tilsit, now Sovetsk in the Kaliningrad region. Their celebrated first meeting took place in a pavilion constructed on a raft in the Niemen, physically separating the two emperors from the territory of either power and providing one of the most memorable pieces of political theatre of the Napoleonic period.

The discussions concerned far more than Poland. Napoleon was attempting to reorganise the European balance of power following his victories over Austria and Prussia, isolate Britain economically, and secure Russian cooperation with the Continental System. Alexander needed peace after Friedland and sought to preserve as much as possible of Prussia, Russia's defeated ally. The Polish question therefore entered the negotiations as one part of a much wider redistribution of power.

For Napoleon, the Polish lands were both strategically valuable and diplomatically dangerous. A Polish state could provide troops, resources and a military barrier in eastern Europe. A full restoration of Poland, however, would threaten Russia and Austria as well as Prussia and potentially make agreement with Alexander impossible. The settlement reached at Tilsit reflected this contradiction.

What the Treaties of Tilsit actually said about Poland

There was no single Treaty of Tilsit. France concluded a treaty with Russia on 7 July 1807 and a separate treaty with Prussia on 9 July. The distinction matters because the creation of the Duchy can be followed directly through the surviving treaty texts rather than reconstructed only from later descriptions.

Article V of the Franco-Russian treaty addressed the former Polish territories held by Prussia. It provided that those provinces which had belonged to the Kingdom of Poland on 1 January 1772 and had subsequently fallen under Prussian rule, subject to specified exceptions, were to pass to the King of Saxony under the title of the Duchy of Warsaw.[2] The provision also required that the Duchy be governed under arrangements protecting the liberties and privileges of its inhabitants while remaining compatible with the security of neighbouring states.

The wording reveals the limits of Napoleon's settlement. There is no restoration of the Polish-Lithuanian Commonwealth and no declaration of a Kingdom of Poland. The diplomatic language instead begins with territories belonging to Poland before the First Partition and then carefully determines which of the former Prussian acquisitions would be removed from Frederick William III.

The Franco-Prussian treaty of 9 July completed the arrangement from the Prussian side. Prussia renounced extensive territories, and Article XV confirmed that the relevant provinces were to be possessed by the King of Saxony “under the title of a Dukedom of Warsaw.”[3] Prussia had lost around half of its pre-war territory in the wider Tilsit settlement, with western possessions contributing to Napoleon's new Kingdom of Westphalia and the former Polish lands forming the core of the Duchy.[4]

The decision not to call the new state “Poland” was politically useful. The name Duchy of Warsaw anchored it to a capital rather than explicitly claiming succession to the Commonwealth or sovereignty over all the territories lost in the Partitions. Napoleon could therefore give the Poles a state without formally announcing a programme for the recovery of every former Polish territory from Russia, Austria and Prussia.

Yet the treaty text itself retained an unmistakable connection with pre-partition Poland by using the territorial position of 1772 as its point of reference. That mattered politically and symbolically. The Partitions were implicitly present in the document because the lands from which the new state was assembled were defined through their former membership of Poland.

The resulting Duchy covered approximately 104,000 square kilometres and contained around 2.6 million inhabitants.[5] Warsaw became its capital, and much of central and western Poland returned to Polish administration. It was far smaller than the old Commonwealth, but after twelve years in which no Polish state had existed, the reappearance of Warsaw as the capital of a Polish political entity carried significance far beyond the Duchy's size.

Gdańsk and the geography created at Tilsit

The treatment of Gdańsk, then usually rendered in French and English diplomatic documents as Danzig, shows how deliberately Napoleon reconstructed the political geography of the region. The city had belonged to the Polish-Lithuanian Commonwealth until the Second Partition in 1793, but Tilsit did not incorporate it into the Duchy of Warsaw.

Article VI of the Franco-Russian treaty instead restored Danzig as a Free City, with a surrounding territory and under the protection of the kings of Prussia and Saxony.[2] The Franco-Prussian treaty likewise required Frederick William III to renounce possession of the city and established its separate political status.[3] Tilsit therefore produced two neighbouring Napoleonic creations from territories recently ruled by Prussia: the Duchy of Warsaw and the Free City of Danzig.

The distinction had practical consequences. The Vistula linked the Polish interior with the Baltic, and the treaties expressly protected navigation on the river. Napoleon's settlement consequently involved questions of frontiers, customs, military communications and access to waterways that continued to require negotiation after the diplomatic spectacle at Tilsit had ended.

This is where surviving manuscripts can reveal aspects of Napoleonic government that disappear in a simple political map. Diplomatic agreements created borders, but officials still had to decide where those borders actually ran, which islands or channels belonged to which authority, how military positions were to be withdrawn, and how local administration would function. A surviving group of negotiation documents from late 1807 relating to the settlement around Gdańsk and the Vistula records precisely this process, showing Prussian and French representatives translating the territorial settlement imposed after Tilsit into practical geography.

That documentary afterlife is particularly valuable because it connects the celebrated high diplomacy of Napoleon and Alexander with the administrative reality that followed. The Duchy of Warsaw did not emerge fully formed on 7 July. Treaties, conventions, memoranda, maps, decrees and correspondence progressively converted the military conquest of 1806–1807 into a new political order.

Why the King of Saxony became Duke of Warsaw

The choice of Frederick Augustus I of Saxony as ruler of the Duchy was not arbitrary. His family already possessed a long connection with the Polish Crown. Augustus II and Augustus III of the House of Wettin had ruled the Polish-Lithuanian Commonwealth during the eighteenth century, and Frederick Augustus was the grandson of Augustus III.

More importantly, his connection with Polish constitutional history was considerably more recent. The Constitution of 3 May 1791 had attempted to replace the elective monarchy with hereditary succession and explicitly designated Frederick Augustus, then Elector of Saxony, as the intended successor to Stanisław August Poniatowski.[6] The political system established in 1791 had been destroyed before that succession could occur, but Napoleon's choice in 1807 revived an association already embedded in the last great constitutional project of the Commonwealth.

Tilsit placed the Duchy in personal union with Saxony. Frederick Augustus remained King of Saxony while becoming Duke of Warsaw, and his hereditary position in the Duchy was subsequently confirmed by the constitution Napoleon granted. This offered Napoleon a ruler who possessed dynastic legitimacy, depended upon the French imperial system and could be presented to Poles as having a connection with their own constitutional past.

There were nevertheless profound differences between the settlement of 1791 and that of 1807. The Constitution of 3 May had been enacted by the Commonwealth's own Sejm as an attempt to reform an existing state. The Constitution of the Duchy of Warsaw was granted by Napoleon following military conquest and international treaty. The two constitutional moments shared personnel, memories and even the Saxon dynastic connection, but they belonged to very different political circumstances.

The Constitution of the Duchy of Warsaw, 22 July 1807

Only thirteen days after the Franco-Prussian treaty, Napoleon gave the Duchy its constitution at Dresden on 22 July 1807. The speed with which the constitutional settlement followed Tilsit demonstrates how closely the political structure of the new state formed part of Napoleon's wider reconstruction of Europe.

The document survives as one of the fundamental texts of nineteenth-century Polish constitutional history. Its final declaration explicitly states that Napoleon was acting in fulfilment of Article V of the Treaty of Tilsit, directly connecting the diplomatic settlement of 7 July with the constitutional state created later that month.[7]

The constitution established the Catholic religion as the religion of the state while guaranteeing public freedom of worship. Its fourth article abolished personal servitude and declared citizens equal before the law. The ducal crown was made hereditary in the Saxon royal house, executive authority rested with the ruler, and the constitution provided for ministers, a Council of State, a bicameral Sejm and a judicial system.[7]

Several provisions represented a decisive departure from the social and legal arrangements inherited from the Commonwealth. The abolition of personal servitude and the principle of equality before the law belonged to the legal language of Napoleonic Europe, as did the subsequent introduction of the Napoleonic Code. Yet legal emancipation did not instantly transform the economic structure of the countryside. Noble landownership remained dominant, and the social consequences of reform were more complicated than the constitutional wording alone suggests.[1]

At the same time, the constitution retained elements that gave the state a specifically Polish identity. Article 84 required acts of government, legislation, administration and the courts to be written in the national language.[7] Existing Polish civil and military orders were maintained, while Polish political elites occupied the institutions of the Duchy. French influence was pervasive, but the state was not simply administered as another French department.

Books and printed official documents are especially important for understanding this process. The Dziennik Praw Księstwa Warszawskiego, the official Journal of Laws, transformed constitutional decisions into printed law and carried the new state into courts, offices and provincial administration. Constitutions, legal codes, military regulations, proclamations and administrative printing provide another form of evidence for the Duchy's existence: the physical paperwork through which a state, extinguished from the European map in 1795, again began to govern.

Was the Duchy of Warsaw an independent Polish state?

The question is difficult only if independence is treated as an absolute condition. The Duchy possessed many fundamental attributes of statehood: a territory, government, constitution, legislature, army, courts and administration. Polish was the language of government, and Polish political figures occupied major offices. For many inhabitants, these institutions represented an unmistakable return of Polish public life.

Its freedom of action was nevertheless sharply constrained by Napoleon's European system. France determined the strategic circumstances in which the Duchy had been created and remained essential to its survival. French military requirements imposed heavy demands upon the population, and the Polish army became an important component of Napoleon's forces. The Duchy could not conduct an independent foreign policy capable of separating its interests from those of France.[1]

This dependence helps explain the continuing ambiguity of Napoleon's place in Polish historical memory. His policies were guided by French imperial interests rather than a straightforward commitment to Polish national independence. Yet the institutions created under French protection were real institutions, and Polish soldiers and politicians were not simply imagining the political opportunities created by them.

Tilsit therefore produced a state built from overlapping interests. Napoleon gained a military ally and strategic position east of Germany. Frederick Augustus gained another crown within the Napoleonic system. Polish political elites gained the opportunity to rebuild institutions and an army. Russia accepted a limited Polish state while preventing anything approaching the restoration of the Commonwealth on its former scale.

The arrangement could satisfy none of these interests permanently. Its instability was present from the moment of creation because the future of the Duchy depended upon the balance between France, Russia, Prussia and Austria remaining roughly as Napoleon had established it in 1807.

From Tilsit to the expansion of the Duchy

The territorial settlement of 1807 was soon altered. When Austria renewed war with Napoleon in 1809, Austrian forces invaded the Duchy and fought Józef Poniatowski's army at Raszyn. Although Warsaw was temporarily surrendered, Poniatowski carried the campaign into Austrian Galicia, where Polish support allowed him to transform a defensive war into an opportunity for territorial expansion.

Napoleon's victory over Austria ultimately produced the Treaty of Schönbrunn in October 1809. The Duchy acquired substantial former Polish territories from Austria, including Kraków and Lublin, greatly increasing both its territory and population.[5] For supporters of Polish restoration, expansion seemed to suggest that the limited state created at Tilsit might eventually become something larger.

That expectation reached its height in 1812 when Napoleon invaded Russia. Polish hopes for the recovery of Lithuania and the reconstruction of a broader Polish state accompanied the enormous military mobilisation for the Russian campaign. Napoleon remained cautious about making commitments that might complicate his wider political calculations, but the war brought the question of Poland back into direct conflict with Russia.

The destruction of the Grande Armée changed everything. Russian forces entered the Duchy in 1813, and its political future passed from Napoleon's control to the coalition that eventually defeated him. The state created at Tilsit effectively ceased to function before Napoleon's final fall, although its formal territorial fate was settled only during the Congress of Vienna.

From the Duchy of Warsaw to Congress Poland

In 1815 the victors did not simply restore the political map that had existed before Napoleon. Most of the Duchy became the Kingdom of Poland, commonly known as Congress Poland, whose king was the Russian emperor Alexander I. Prussia recovered substantial western territories, while Kraków became a separate Free City under the protection of Russia, Austria and Prussia.

There is an important continuity here. The Congress Kingdom was different from the Duchy in sovereignty, constitutional structure and international position, but it inherited personnel, institutions and political expectations formed during the Napoleonic period. Men who had served the Duchy continued to occupy important positions after 1815, while the existence of a Polish army, administration and constitution remained central to political life.

This helps explain why the Duchy of Warsaw matters far beyond the eight years of its formal existence. Between 1795 and 1807 the Polish state had disappeared altogether. After Tilsit, political debate concerned less whether any Polish institutions could exist than what form they should take, how much autonomy they should possess, and which European power could or should guarantee them.

Those questions ran directly into the history of Congress Poland between 1815 and 1830. Conflict over constitutional government, censorship, the army and Russian authority eventually contributed to the outbreak of the November Uprising in 1830. The defeat of that uprising in turn produced the Great Emigration, carrying a generation of Polish soldiers, politicians and writers into France, Britain, Belgium and other parts of Europe.

Tilsit therefore occupies a pivotal position in the longer history of nineteenth-century Poland. The sequence from the Partitions to the Duchy of Warsaw, from the Duchy to Congress Poland, and from Congress Poland to the November Uprising and Great Emigration forms one continuous history of attempts to preserve or recover Polish political existence under the European order created between the French Revolution and the Congress of Vienna.

Tilsit and the return of Poland to the map

The creation of the Duchy of Warsaw was born from military victory and diplomatic compromise rather than a declaration of national independence. Napoleon did not reverse the Partitions in their entirety, and the treaties of 1807 carefully avoided restoring the Polish-Lithuanian Commonwealth. Russia retained extensive former Commonwealth territories, Austria retained Galicia until the losses of 1809, Prussia survived as a greatly reduced kingdom, and Gdańsk followed its own path as a Napoleonic Free City.

What Tilsit did accomplish was still extraordinary. Twelve years after the final Partition, Warsaw once again became the capital of a Polish state. Polish ministers governed, Polish courts operated, Polish laws were printed, a Polish army marched under its own commanders, and a Sejm once again formed part of political life.

The documentary evidence makes that transformation particularly tangible. The treaty articles signed at Tilsit defined the new state in the diplomatic language of European power politics. The constitution issued at Dresden translated that agreement into institutions. Printed laws gave those institutions practical authority, while maps, military orders, correspondence and negotiation manuscripts reveal the daily work of drawing boundaries and administering the new political geography.

The Duchy itself would disappear with Napoleon's empire. The political world it created did not. Its army produced figures who remained central to Polish memory, its institutions survived in altered form after 1815, and the expectations of political autonomy that it encouraged became part of the conflicts that shaped Congress Poland and the November Uprising. In that sense, the meeting at Tilsit belongs not only to the history of Napoleon's victories but to the longer history of Poland's return to European political life.

 

To read more on the history of the Duchy of Warsaw, see this page.

 

Bibliography

[1] Jarosław Czubaty, “Collaboration: The Case of the Duchy of Warsaw,” in Alan Forrest and Peter Hicks, eds., The Cambridge History of the Napoleonic Wars (Cambridge: Cambridge University Press, 2022), pp. 181–200.

[2] Treaty of Peace between France and Russia, Tilsit, 7 July 1807, especially Articles IV–IX. The treaty's Article V establishes the Duchy of Warsaw and Article VI provides for the Free City of Danzig.

[3] Treaty between Prussia and France, Tilsit, 9 July 1807, especially Articles XIV–XX. Article XV confirms the transfer of the relevant Prussian territories to the King of Saxony under the title of the Duchy of Warsaw.

[4] Michael V. Leggiere, Napoleon and the Struggle for Germany, vol. I (Cambridge: Cambridge University Press, 2015), discussion of the territorial consequences of Tilsit and the reduction of Prussia. Cambridge's published extract records the loss of roughly half the Prussian kingdom and the allocation of its former Polish provinces to the Duchy.

[5] Fondation Napoléon, “The Duchy of Warsaw,” overview of the Duchy's creation, territory, population, constitution and subsequent expansion.

[6] Government Act [Constitution of 3 May 1791], Article VII, establishing hereditary succession and designating Frederick Augustus of Saxony as the intended successor to Stanisław August.

[7] Constitution of the Duchy of Warsaw, 22 July 1807, originally published in Dziennik Praw Księstwa Warszawskiego, vol. I (1807), including Articles 1–6 and 84–89 and Napoleon's concluding confirmation linking the constitution directly to Article V of the Treaty of Tilsit.