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In page Renate Rubinstein:

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Following the Battle of the Netherlands, when Nazi Germany invaded and conquered the Netherlands in 1940, Rubinstein's father was arrested. He was murdered in the Auschwitz concentration camp near the end of World War II. This event was a determining factor in Rubinstein's life and work - she is said to have spent the rest of her life searching for a father figure, and her bond with German-British sociologist Norbert Elias has been explained by some as proof for this.[citation needed]