The registration of address office in Amsterdam was the target of a strategic sabotage operation on 27 March 1943, designed to destroy records used by the Nazi regime to identify citizens for forced labour and deportation. Karl Gröger participated in this mission, donning a police disguise to infiltrate the facility alongside other resistance operatives.
Early Life and Education
Born in Vienna in 1918 to Frieda and Karl Gröger, he grew up during a period of significant social change. He attended the University of Vienna, where he was involved in student associations. Following his graduation in March 1938, he moved to Amsterdam to continue his medical studies, though the geopolitical landscape of Europe shifted rapidly shortly thereafter.
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Following the German occupation of the Netherlands in May 1940, Gröger was drafted into the Wehrmacht. His service was brief, as he was discharged once his Jewish ancestry was discovered. He subsequently joined the resistance network organized by sculptor Gerrit van der Veen. Beyond sabotage, he contributed to the distribution of the underground newspaper Rattenkruid.
The Sabotage of the Registry
The 1943 assault on the civil registry at Plantage Kerklaan 36 was meticulously planned to prevent loss of life. Disguised as officers, the group convinced guards to allow them entry to search for explosives before sedating them. They doused the building's records with benzene and detonated explosives. The operation succeeded in destroying thousands of file cards, hampering Nazi efforts to track the population.
Capture and Execution
After the registry attack, Gröger went into hiding at a farm. His location was compromised when he attempted to contact his girlfriend, leading to his arrest by the Gestapo. Following a sentence handed down by an SS and police court in The Hague, he was executed in the dunes near Overveen in 1943. His plea for clemency was rejected by Heinrich Himmler.
Fast facts
- Born: 1918, Vienna
- Died: 1943, Overveen
- Education: University of Vienna
- Resistance Group: Gerrit van der Veen
- Award: Righteous Among the Nations (1986)
Questions readers ask
Why was Karl Gröger discharged from the German Army?
He was discharged after the military discovered his Jewish descent.
What was the purpose of the 1943 attack on the Amsterdam registry?
The goal was to destroy records that facilitated the identification of people for forced labour and concentration camp deportation.
Achievements
- Righteous Among the Nations — 1986
- Worked as military personnel, resistance fighter and dental technician
- Educated at University of Vienna
