About Karl Sack
Lived 1896 – 1945 (aged 48). Karl Sack was a German judge and resistance fighter.
Karl Sack (9 June 1896 – 9 April 1945) was a German jurist and member of the resistance movement during World War II.
Life Karl Sack was born in Bosenheim (now Bad Kreuznach). He studied law in Heidelberg where he joined a Burschenschaft (Burschenschaft Vineta) and after a time in legal practice became a judge in Hesse. He married Wilhelmine Weber and had two sons. In 1934, Sack joined the newly established Reichskriegsgericht (Reich Military Court) where he quickly rose to a senior position. He was able to delay proceedings against Army Commander-in-Chief Werner von Fritsch who had been falsely accused of homosexuality by the Gestapo in an attempt to discredit him for his opposition to Hitler's attempts to subjugate the German armed forces. In the autumn of 1942, Karl Sack became Judge Advocate General of the Army.
During the Second World War, Sack maintained contacts within the resistance circles in the military, including Admiral Wilhelm Canaris, Major General Hans Oster and Hans von Dohnanyi, as well as with others within the Abwehr (German military intelligence). He was part of the attempt to assassinate Hitler on 20 July 1944, and after that attempt failed he was arrested on 9 August. In the very last days of the war, he was brought before an SS drumhead court-martial presided over by Otto Thorbeck. He was sentenced to death and hanged two days later at Flossenbürg concentration camp. Sack had been slated for the role of Justice Minister within a planned post-coup civilian government.
In 1984, Sack's role as a member of the resistance was remembered with a bronze plaque placed in the former Reichskriegsgericht in Berlin-Charlottenburg. There was some opposition to this honour as Sack favoured a far-reaching interpretation of what constituted desertion, which ostensibly could have led to unwarranted death sentences.
In Bosenheim, a suburb of Bad Kreuznach, a street has been named in his honour.
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Important facts
People in Karl Sack's life
Named in this biography and alive at the same time
Contemporaries
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Frequently asked questions
Who was Karl Sack?
German judge (1896-1945)
When was Karl Sack born?
Karl Sack was born on 9 June 1896 in Bosenheim.
When did Karl Sack die?
Karl Sack died on 9 April 1945 in Flossenbürg concentration camp.
What was Karl Sack's occupation?
Karl Sack was a judge and resistance fighter.
What nationality was Karl Sack?
Karl Sack was German.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Karl Sack. https://biography.guide/karl-sack/
MLA: "Karl Sack." Biography.guide, https://biography.guide/karl-sack/.
Chicago: "Karl Sack." Biography.guide. https://biography.guide/karl-sack/.
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