Question: Hanns and Rudolf is a dual biography of Hanns Alexander and which Nazi German "SS"-"Obersturmbannführer" (lieutenant colonel) and the longest-serving commandant of Auschwitz concentration and extermination camp in World War II?
Sentence (from "Hanns and Rudolf"): Hanns and Rudolf is a dual biography of Hanns Alexander and Rudolf Höss by the British-American journalist Thomas Harding.
Relevant evidence: Yes