Question: In what year was a commander of Ergänzungs-Jagdgruppe Ost who claimed a total of 212 aerial victories born?
Sentence (from "Ergänzungs-Jagdgruppe Ost"): It was formed on 27 January 1942 in Krakau and renamed Jagdgruppe Ost" (JGr Ost) on 25 November 1942.
Relevant evidence: No