East Prussia (German: Ostpreußen; Polish: Prusy Wschodnie; Lithuanian: Rytų Prūsija; Latin: Borussia orientalis; Russian: Восточная Пруссия, Vostochnaya Prussiya) was a province in the Kingdom of Prussia from 1773 to 1829. From 1878 to 1918, it was part of the German Empire. From 1918 until 1945, it was a part of the Weimar Republic's Free State of Prussia. It's capital was Königsberg.
|Province of the Kingdom of Prussia (until 1918) and the Free State of Prussia|
East Prussia in the German Empire.
|36,993 km2 (14,283 sq mi)|
|31 January 1773|
• Province of Prussia
|3 December 1829|
• Province restored
|1 April 1878|
|Today part of|| Lithuania|
After the defeat of Nazi Germany in World War II, the area was divided into to the Soviet Union (Russian SFSR, and Lithuanian SSR) and Poland (Warmian-Masurian Voivodeship). Königsberg was renamed Kaliningrad in 1946. The German population either evacuated or was expelled.