grandmother Brita Stuart, a Swedish noblewoman of Scottish royal descent. Otmar von Verschuer was the father of Helmut Freiherr von Verschuer (also known as Helmut van Verschuer), a high-ranking official of the European Commission, and the grandfather of the Belgian-German actor, Leopold Freiherr von Verschuer (born 1961 in Brussels). Early career Verschuer served in the First World War and had been promoted to first lieutenant by 1918. From 1919, he studied medicine at the University of Marburg. He earned a doctorate in medicine at LMU in 1923 and a habilitation at the University of Tübingen in 1927. In 1927, he became head of department for human genetics at the Kaiser Wilhelm Institute of Anthropology, Human Heredity, and Eugenics. Nazi era In 1935, Verschuer became a member of the congregation of the anti-Nazi pastor Otto Fricke, a leading member of the Confessing Church. He also maintained a close friendship with his relative, Adam von Trott zu Solz, a leading resistance figure. Despite his proximity to the Confessing Church, he joined the Nazi Party in 1940, although he was not actively involved with politics. In the late stages of the Second World War, Verschuer directly or indirectly started to use research material obtained in the Auschwitz concentration camp, mainly through his former student Josef Mengele, who served there as a camp physician. Verschuer was never tried for war crimes despite many indications that not only was he fully cognisant of Mengele's work at Auschwitz, but even encouraged and collaborated with Mengele. In a report to the German Research Council (Deutsche Forschungsgemeinschaft; DFG) from 1944, Verschuer talked about Mengele's assistance in supplying the KWI-A with some "scientific materials" from Auschwitz: My assistant, Dr. Mengele (M.D., Ph.D.) has joined me in this branch of research. He is presently employed as Hauptsturmführer and camp physician in the concentration camp at Auschwitz. Anthropological investigations on the most diverse racial groups of this concentration camp are being carried out with permission of the SS Reichsführer [Himmler]; the blood samples are being sent to my laboratory for analysis. Verschuer wrote in the report that the war conditions had made it difficult for the KWI-A to procure "twin materials" for study, and that Mengele's unique position at Auschwitz offered a special opportunity in this respect. In the summer of 1944, Mengele and his Jewish slave assistant Dr. Miklós Nyiszli sent other "scientific materials" to the KWI-A, including the bodies