Hans Krása was a Czech composer. He was killed during the Holocaust at Auschwitz-Birkenau. He helped to organize cultural life in Theresienstadt concentration camp.

Theresienstadt Ghetto was established by the SS during World War II in the fortress town of Terezín, in the Protectorate of Bohemia and Moravia. Theresienstadt served as a waystation to the extermination camps. Its conditions were deliberately engineered to hasten the death of its prisoners, and the ghetto also served a propaganda role. Unlike other ghettos, the exploitation of forced labor was not economically significant.