Flossenbürg concentration camp was a German prison built in 1938 by the Nazis near Flossenbürg in the Oberpfalz region (Bavaria). From the beginning, the prison was set up like a concentration camp according to the Dachau principle and served primarily for prisoners and prisoners of war from the occupied territories in the east. The first prisoners, mostly Germans, built the camp. The location of the camp (and of the 100 sub-camps) was chosen so that the prisoners could be used as unpaid workers in the local granite quarries and in the Messerschmitt factories.