On 6 November 1939 he was arrested , among 184 other academics and professors , by the German soldiers in Sonderaktion Krakau . Initially he was imprisoned in the Montelupich Prison . Later he was transferred to the barracks at Mazowiecka Street in Kraków , and then to the prison in Wrocław . He was imprisoned in Sachsenhausen , where he stayed until March 1940 , when he was transferred to Dachau . He was released in January 1941
Sonderaktion Krakau
Sonderaktion Krakau
Aleksander Kocwa