Greater Poland became Prussian in 1772 (
Netze District) and 1793 (
South Prussia) during the
First and
Second Partition of Poland. After Prussia's defeat in the
Napoleonic Wars, the territory was attached to the
Duchy of Warsaw in 1807 upon the Franco-Prussian
Treaty of Tilsit. In 1815 during the
Congress of Vienna, Prussia gained the western third of the Warsaw duchy, which was about half of former South Prussia. Prussia then administered this province as the semi-autonomous
Grand Duchy of Posen, which lost most of its exceptional status already after the 1830
November Uprising in
Congress Poland, the
Frankfurt Parliament ignored the vote, unsuccessfully attempting its status change to a common Prussian province, as well as its incorporation into the
German Confederation. The Frankfurt parliamentarian
Carl Friedrich Wilhelm Jordan vehemently spoke against Polish autonomy. The assembly at first attempted to divide the Posen duchy into two parts: the Province of Posen, which would have been given to the German population and annexed to a newly created
Greater Germany, and the Province of
Gniezno, which would have been given to the Poles and remain outside of Germany. Because of the protest of Polish politicians, this plan failed and the integrity of the duchy was preserved. Nevertheless, when the Prussian troops had finally crushed the Greater Polish revolt, after a series of broken assurances, on 9 February 1849 the Prussian authorities renamed the duchy as the Province of Posen. In spite of that, the territory formally remained outside of the
German Confederation (and thus Germany) until the German Confederation was dissolved and the
North German Confederation was established, which occurred in
1866. Nevertheless, the Prussian Kings retained the title "Grand Duke of Posen" until the German and Prussian monarchy finally expired in 1918, following the abdication of
William II. With the
unification of Germany after the
Franco-Prussian War of 1870–71, the Province of Posen became part of the
German Empire, and the city of Posen was officially named an imperial residence city. Bismarck's hostility towards the Poles was already well known, as in 1861 he had written in a letter to his sister:
"Hit the Poles so hard that they despair of their life; I have full sympathy for their condition, but if we want to survive we can only exterminate them." His dislike was firmly entrenched in traditions of Prussian mentality and history. There was little need for discussions in Prussian circles, as most of them, including the monarch, agreed with his views. Poles suffered from discrimination by the Prussian state; numerous oppressive measures were implemented to eradicate the Polish community's identity and culture. The Polish inhabitants of Posen, who faced discrimination and even forced Germanization, favored the French side during the
Franco-Prussian War. France and Napoleon III were known for their support and sympathy for the Poles under Prussian rule Demonstrations at news of Prussian-German victories manifested Polish independence feelings and calls were also made for Polish recruits to desert from the
Prussian Army, though these went mostly unheeded. Bismarck regarded these as an indication of a Slavic-Roman encirclement and even a threat to unified Germany. Under German Chancellor
Otto von Bismarck renewed Germanisation policies began, including an increase of the police, a colonization commission, and the
Kulturkampf. The
German Eastern Marches Society (
Hakata) pressure group was founded in 1894 and in 1904, special legislation was passed against the Polish population. The legislation of 1908 allowed for the confiscation of Polish-owned property. The Prussian authorities did not permit the development of industries in Posen, so the duchy's economy was dominated by high-level agriculture. At the end of World War I, the fate of the province was undecided. The Polish inhabitants demanded the region be included in the newly independent
Second Polish Republic, while the German minority refused any territorial concessions. Another
Greater Poland Uprising broke out on 27 December 1918, a day after
Ignacy Jan Paderewski's speech. The uprising received little support from the Polish government in
Warsaw. After the success of the uprising, Posen province was until mid-1919 an independent state with its own government, currency and military. With the signing of the
Treaty of Versailles in 1919, most of the province, composed of the areas with a Polish majority, was ceded to Poland and was reformed as the
Poznań Voivodeship. The majority-German populated remainder (with
Bomst,
Fraustadt,
Neu Bentschen,
Meseritz,
Tirschtiegel (partially),
Schwerin,
Blesen,
Schönlanke,
Filehne,
Schloppe,
Deutsch Krone,
Tütz,
Schneidemühl,
Flatow,
Jastrow, and
Krojanke—about ) was merged with the western remains of former
West Prussia and was administered as
Posen-West Prussia with Schneidemühl as its capital. This province was dissolved in 1938, when its territory was split between the neighboring Prussian provinces of
Silesia,
Pomerania and
Brandenburg. In 1939, the territory of the former province of Posen
was annexed by Nazi Germany and made part of
Reichsgau Danzig-West Prussia and
Reichsgau Wartheland (initially
Reichsgau Posen). By the time
World War II ended in May 1945, it had been overrun by the
Red Army. Following Germany's defeat in World War in 1945, at
Stalin's demand all of the German territory east of the newly established
Oder–Neisse line of the
Potsdam Agreement was either turned over to the
Poland or the
Soviet Union. All historical parts of the province came under Polish control, and the remaining ethnic German population was
expelled by force.
Dissolution after 1918 ==Religious and ethnic composition ==