Karl Gröger was born in Vienna on 7th February 1918. As a student he was involved in the Austrian Social Democratic Student Union. After his education at the Gymnasium he studied medicine at the Vienna University. Shortly after he graduated in 1938 he fled to the Netherlands. Here he continued studying medicine at the Amsterdam University.
Being an Austrian, he was called up for military service, shortly after the German forces occupied the Netherlands in May 1940, but was soon fired for being partly Jewish. He then joined a resistance group around resistance fighter Gerrit van der Veen and he worked for the resistance newspaper "Rattenkruit". On March 27, 1943 he took part in the partly failed attempt to blow up the Amsterdam Civil Register. Gröger had to flee and went underground. Eventually he was captured by the Gestapo at his hiding adress and imprisoned in the Headoffice of Police in Amsterdam. From there he was transferred to the Hague and sentenced to death by a police jury in 1943. A plee to release him was rejected by Heinrich Himmler and on July 1, 1943, Karl Gröger was executed in the dunes near Overveen, the Netherlands.
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