Schlochau (district)

By 1 January 1945, the district included five towns: Baldenburg (Biały Bór), Hammerstein (Czarne), Landeck (Lędyczek), Preußisch Friedland (Debrzno) and Schlochau (Człuchów).

After population decline in the wake of wars in the 15th century and partition of the Teutonic state to Polish part, German peasants from neighboring Farther Pomerania settled in the Schlochau region, which became German-speaking in majority.

Following the dissolution of West Prussia after World War I and the Treaty of Versailles, the Schlochau district became part of Schneidemühl Region in the newly established Frontier strip of Posen-West Prussia province.

When Posen-West Prussia was dissolved on 1 October 1938, the Schlochau district was transferred to Province of Pomerania and formed part of its new Frontier strip of Posen-West Prussia region, which was actually the Schneidemühl Region enlarged by four previously Brandenburgian and Pomeranian districts and renamed as Posen-West Prussia Region for reasons of tradition.

The Schlochau district was conquered by the Soviet Red Army in 1945 during World War II.