In which year was this Nazi Party paramilitary rank created that Emil Ketterer belonged?
Obergruppenführer Obergruppenführer (] , "senior group leader") was a Nazi Party paramilitary rank that was first created in 1932 as a rank of the "Sturmabteilung" (SA), and adopted by the "Schutzstaffel" (SS) one year later. Until April 1942, it was the highest commissioned SS rank, inferior only to "Reichsführer-SS" (Heinrich Himmler or RFSS, which was the internal SS-abbreviation for Himmler) Translated as "senior group leader", the rank of "Obergruppenführer" was senior to "Gruppenführer". A similarly named rank of "Untergruppenführer" existed in the SA from 1929 to 1930 and as a title until 1933. In April 1942, the new rank of "SS-Oberst-Gruppenführer" was created which was above "Obergruppenführer" and below "Reichsführer-SS".
August Meyszner August Edler von Meyszner (3 August 1886 – 24 January 1947) was an Austrian gendarmerie officer, right-wing politician, and senior "Ordnungspolizei" (order police) officer who held the post of Higher SS and Police Leader in the German-occupied territory of Serbia from January 1942 to March 1944, during World War II. He has been described as one of "Reichsführer-SS" Heinrich Himmler's most brutal subordinates.