Margarete Buber-Neumann

Margarete Buber-Neumann (née Thüring; 21 October 1901 – 6 November 1989) was a German writer. As a senior Communist Party of Germany member and Gulag survivor, she was turned into a staunch anti-communist. She wrote the famous memoir ''Under Two Dictators'', which begins with her arrest in Moscow during Joseph Stalin's Great Purge, followed by her imprisonment as a political prisoner in both the Soviet Gulag and the Nazi concentration camp system, after she was handed over by the NKVD to the Gestapo during World War II.

Buber-Neumann was also known for having testified in the so-called "Trial of the Century" about the Kravchenko Affair in France. In 1980, she was awarded the Great Cross of Merit of the West Germany. Provided by Wikipedia