Anita Lasker-Wallfisch is a German born Jewish cellist and a surviving member of the Women's Orchestra in Auschwitz. She and her sister Renate were sent to Auschwitz in December 1943 on separate prison trains. During the Belsen Trial which took place from September to November 1945 Anita testified against among others the camp commandant Josef Kramer, camp doctor Fritz Klein and deputy camp commandant Franz Hössler who were all sentenced to death and hanged that year.