Question: Margarete Berta "Gretl" Braun, was one of the two sisters of Eva Braun, raun married who, which was a high-ranking commander in the Waffen-SS of Nazi Germany, and a liaison officer on Hitler's staff, on 3 June 1944?
Sentence (from "Hermann Fegelein"): He was a member of Adolf Hitler's entourage and brother-in-law to Eva Braun through his marriage to her sister, Gretl.
Relevant evidence: No