The Holocaust was in the hands of the SS, which was headed by Heinrich Himmler. One of the main architects of the detailed arrangements for the 'Final Solution' was Reinhard Heydrich (1904-42), an SS-Obergruppenfuehrer (Lieutentant-General) who was so to speak the power behind the throne in the SS. (In May 1942 he was assassinated in Prague by members of the Free Czechoslovak Army who had been parachuted into Bohemia by the RAF. He was the only really senior Nazi to be assassinated. Heydrich had combined many functions and posts and these were later divided. The construction of the death camps at Treblinka, Belzec, Sobibor and Majdanek was called "Operation Reinhard" after him! Heydrich was buried amid much pomp and ceremony in Berlin, but his grave was destroyed by the Allies in 1945 to prevent it becoming a Nazi place of pilgrimage. One of the most notorious Nazis who played an active role in the Holocaust was Adolf Eichmann (1906-62). Joncey See the Related Link for "Wikipedia: Reinhard Heydrich" to the right.