Irma Grese
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Irma Ilse Ida Grese (7 October 1923 – 13 December 1945) was a Nazi concentration camp guard at Ravensbrück, Auschwitz II-Birkenau, and Bergen-Belsen. She has been widely known as the "Hyena of Auschwitz" and the "Beast of Belsen" for the atrocities she committed during her service. Following the Allied occupation of Nazi Germany in April 1945, Grese was found guilty of war crimes involving the torture and murder of Jewish prisoners at the Belsen trial and sentenced to death by hanging. She was hanged at the age of 22, making her the youngest woman to be judicially executed under British law in the twentieth century.