2 but they died at infincy
Yes Adolf Hiltler did have a sister Jedsaoso Hitler. Yes Adolf Hiltler did have a sister Jedsaoso Hitler.
Gustav, Otto and Edmund.
Yes, 2 brothers and 1 sister
Adolf Hitler had another 5 brothers and sisters
Hitler had 3 brothers, Gustav, Otto and Edmund and a step-brother, Alois Jr.
Edmund, Otto and Gustav were his brothers. All were dead before Adolf came to power in Germany.
Hitler had 3 siblings.
Otto Hitler, Gustav Hitler Edmund Hitler and Alois Hitler (his half-brother from his father's previous marriage).
Hitler had 4 brothers: Alois, 1882 - 1956 Gustav, 1885 - 1887 Otto, 1887 - 1887 Edmund, 1894 - 1900
That would be Adolf Hitler.
It would be difficult to tell since they all died in childhood.
Adolf Hitler until his death, and then Karl Donitz.