Haute-Silésie
The South Eastern German football championship (German: "Südostdeutsche Fußball Meisterschaft") was the highest association football competition in the Prussian provinces of Silesia, which was divided into the Province of Lower Silesia and the Province of Upper Silesia after 1919, and Posen, which mostly became part of Poland in 1919. The competition was disbanded in 1933.