Poznań Voivodeship (1919–1939)

Poznań Voivodeship (Polish: Województwo Poznańskie) was a unit of administrative division and local government in Poland in the years 1919–1939, created after World War I from the Prussian-German province of Poznań (Province of Posen). The borders were changed in 1939: the city of Bydgoszcz passed to the Pomeranian Voivodeship, but some eastern areas were included (see Territorial changes of Polish Voivodeships on April 1, 1938).

Source: Wikipedia — Poznań Voivodeship (1919–1939) (CC BY-SA 4.0)