Angela Hitler (1883 – 1949) Elder half-sister of Adolf Hitler. By her first husband, Leo Raubal, Sr., she was the mother of Hitler''s alleged lover, Geli Raubal. On Jan. 20, 1936 she married architect Prof. Martin Hammitzsch who later became the Director of the State School of Building Construction in Dresden and committed suicide at war''s end. Scarce A.Q.S. penned within a wedding announcement dated Feb. 17, 1936, in full: "Hearty greetings, but please don''t show this announcement to anyone. Geli" Fine. Hitler apparently disapproved of the marriage, and referred to his half-sister as "Frau Hammitzsch". It seems, however, that Hitler reestablished contact with her during World War II, because Angela remained his intermediary to the rest of the family with whom he did not want contact.

Comes with further research.