East Prussia was a province of the Kingdom of Prussia from 1773 to 1829 and again from 1878 ; following World War I it formed part of the Weimar Republic's Free State of Prussia, until 1945. Its capital city was Königsberg. East Prussia was the main part of the region of Prussia along the southeastern Baltic Coast.
Ethnic settlement in East Prussia by the 14th century
Monument to Immanuel Kant in Königsberg
Napoleon on the Battlefield of Eylau in February 1807
Coronation of William I as King of Prussia at Königsberg Castle in 1861
The Kingdom of Prussia constituted the German state of Prussia between 1701 and 1918. It was the driving force behind the unification of Germany in 1866 and was the leading state of the German Empire until its dissolution in 1918. Although it took its name from the region called Prussia, it was based in the Margraviate of Brandenburg. Its capital was Berlin.
The Prussian Crown Jewels, Charlottenburg Palace, Berlin
Prussian territorial acquisitions in the 18th century
Attack of the Prussian infantry at the Battle of Hohenfriedberg in 1745
Prussia (orange) and its territories lost after the War of the Fourth Coalition (other colours)