On November 6 , 1939 during the notorious '' Sonderaktion Krakau '' , Lehr-Spławiński was arrested and interned by the Gestapo on the order of '' SS-Obersturmbannführer '' Bruno Müller ; along with 184 professors and academics from three different universities in Kraków . It was part of a much broader assault on Polish cultural elite known as '' Intelligenzaktion '' devised by Hitler himself . The prisoners were transported first to jail at Montelupich street and – some three days later – to the detention center in Wrocław ( ) , where they spent 18 days in prison facilities . The Breslau Gestapo were unprepared for such a large transfer of prisoners and awaited permission to send them to the Buchenwald concentration camp . As the camp was filled to capacity , on the evening of November 27 , 1939 they were loaded on a train to the Sachsenhausen concentration camp located outside of Berlin
Sonderaktion Krakau
Sonderaktion Krakau
Tadeusz Lehr-Spławiński