Reichsgau Wartheland
Captured by the German 4th Army during the invasion of Poland on September 11, 1939, Inowrocław was again renamed Hohensalza and initially administered under the military district ("Militärbezirk") of Posen before being incorporated into Nazi Germany first as part of the "Reichsgau" of Posen (1939) and then as part of Reichsgau Wartheland (1939–1945).