Hans F. K. Günther
Hans Friedrich Karl Günther (16 February 1891 – 25 September 1968), popularly known as Hans F. K. Günther, was a German writer, advocate of scientific racism and eugenicist in the Weimar Republic and Nazi Germany. He was also known as "Rassengünther" ("Race Günther") or "Rassenpapst" ("Race Pope").