Province of Upper Silesia
Following the German invasion of Poland, the voivodeship was dissolved on 8 October 1939, and its territory was incorporated into the German Province of Upper Silesia. The territory came back into Polish possession at the end of the war, and the 1920 act giving autonomous powers to the Silesian Voivodeship was formally repealed by a law of 6 May 1945. An enlarged Silesian Voivodeship (unofficially called Silesia-Dąbrowa Voivodeship, ) continued in existence until 1950, when it was divided into Katowice Voivodeship and Opole Voivodeship. (For details, see Administrative division of the People's Republic of Poland.)