Hitler's parents were first cousins. His grandfather is unknown, born out of wedlock. The grandfather took his stepfather's family name "Hitler". There is no evidence that Hitler has any Jewish roots, but bc no-one knows about his grandfather, people's imagination is galloping wild. Maybe the grandfather is the link that connects Adolf to Africa? In my opinion what needs more research is how children born from incestuous unions turn out and how incest affects them. This maybe 'd better explain Hitler's personality?
EU's Mogherini in Tehran to talk nuclear deal, regional issues (Reuters)
from the article: DNA tests reveal Hitler's Jewish and African roots