The grandfather of Rainer Hoss conducted the negotiations with the owners and was the longest serving commandant of Auschwitz concentration and extermination camp.
The Gerstein Report was written in 1945 by Kurt Gerstein, an Obersturmfhrer (First Lieutenant) of the Waffen-SS who rose to become the Head of Technical Disinfection Services of the SS, and in that capacity supplied hydrogen cyanide (Zyklon B) from Degesch ("Deutsche Gesellschaft fr Schdlingsbekmpfung") to Rudolf Hss in Auschwitz and conducted the negotiations with the owners. 
Rudolf Hss (also H, Hoe or Hoess; 25 November 1901  16 April 1947) was a Nazi German "SS"-"Obersturmbannfhrer" (lieutenant colonel) and the longest-serving commandant of Auschwitz concentration and extermination camp in World War II. 
Rainer Hss, born 25 May 1965 in Stuttgart, is the grandson of Rudolf Hss. 
