Prussia (in German, Preussen), former kingdom and state in Germany. At the height of its expansion, in the late 19th century, Prussia extended along the coasts of the Baltic and the North Sea, from Belgium, the Netherlands, France, and Luxembourg in the west to the Russian Empire in the east, to the Austro-Hungarian Empire in the east, south-east, and south, and to Switzerland in the south.

Community content is available under CC-BY-SA unless otherwise noted.