Following the Act of 5th November, the Duchy of Łowicz was annexed into the Kingdom of Poland (1916–18), which was a puppet state of the German Empire. After World War I, in 1918, Poland regained independence, and Łowicz became again part of Poland. In the Second Polish Republic, Lowicz and the County of Lowicz belonged to Warsaw Voivodeship, but on April 1, 1938, it was moved to Lodz Voivodeship (see Territorial changes of Polish Voivodeships on April 1, 1938). In the interbellum Łowicz was visited by Presidents of Poland Stanisław Wojciechowski and Ignacy Mościcki.