The camp was established in September 1939, shortly after the
invasion of Poland which started World War II, as a
Kriegsgefangenenlager camp for Polish POWs. It was located at the former estate of the Mycielski family in the district of Komorowo. French and British POWs were brought to the camp in 1940, and Soviet POWs were brought in 1941. In 1943, Stalag XXI-C still housed Soviet POWs as well as British, French, American, Norwegian and Dutch soldiers treated in the POW hospital. The medical staff of the hospital consisted of Polish POWs and some other POWs. In September 1943, Italians were brought to the camp, and in 1944, Polish soldiers and American airmen, who helped the Polish
Warsaw Uprising also arrived. ==Dissolution==