Reinhard Tristan Eugen Heydrich ( HY-drik, German: [ˈʁaɪnhaʁt ˈtʁɪstan ˈʔɔʏɡ(ɘ)n̩ ˈhaɪdʁɪç] ; 7 March 1904 – 4 June 1942) was a high-ranking German SS and police official during the Nazi era and a principal architect of the Holocaust. Heydrich was chief of the Reich Security Main Office (including the Gestapo, Kripo, and SD). He was also Stellvertretender Reichsprotektor (Deputy/Acting Reich-Protector) of Bohemia and Moravia.
https://en.wikipedia.org/wiki/Reinhard_Heydrich