Reinhard Tristan Eugen Heydrich (7 March 1904 - 4 June 1942) was a high-ranking German Nazi official during World War II, and one of the main architects of the Holocaust. He was SS-Obergruppenfuhrer (General) and General der Polizei, chief of the Reich Main Security Office (including the Gestapo, and Kripo) and Stellvertretender Reichsprotektor (Deputy Reich-Protector) of Bohemia and Moravia. In August 1940 he was appointed and served as President of Interpol (the international law enforcement agency). Heydrich chaired the January 1942 Wannsee Conference, which laid out plans for the final solution to the Jewish Question_the deportation and extermination of all Jews in German-occupied territory. Historians regard him as the darkest figure within the Nazi elite; Hitler christened him "the man with the iron heart".
Contributions by Husnock, Yodacows, and Merecat.