Many loaves ago this was suggested - Gebi had a baby, probably Merkel's daddy Horst since he was born in 1926 and Gebi moved in with Hitler (she and her mom) in 1925. Illegitimate children were fostered out in those days … Merkel's daddy's "father" was a policeman in Berlin. He also was in the Hitler Youth, but then all the kids were at that time.
So Angela is possibly Hitlers Great Niece and Granddaughter. At least, that's what I was thinking. Could def be completely wrong.