The ancestor of Hitler?

 It's Hitler who's got the most scaremongering and speculation going around, roughly, of all figures in world history. The most controversial issue is where did Hitler come from? I suspect that the suspicion was caused by his dark hair and weak blue eyes, which are far from being of German descent. But we can't really conclude what kind of race Hitler is because his grandfather doesn't know exactly. Except for the mythical Jewish theory (Freemason and Rothschild's descendant...) and the untrustworthy Jewish theory (Grandmother worked for a Jewish house and became pregnant with Hitler's father), Czech descent is considered the most credible. About Hitler's grandmother, Shackle Gruber, gave birth to his father, Alois Shackle Gruber, whose father is unknown, but one of the most likely theories is that he had a premarital affair with a man named J. C. hiedler, and Alois Shackle Gruber was married. If this theory is true, it's possible to trace his lineage to some extent. First of all, you can't find Hitler or anything like that in the Germans. Linds, whose ancestors lived there, had long been a closed place where there were mixed races and incest marriages rather than Germans, and Hitler's similar surnames appeared in the 1430s, including Hiedler, Huettler, and Hitler. These were poor peasants who had no social status. So you can trace them to a certain extent based on their last names, but unfortunately, Deutsche doesn't even have a family name similar to this. Rather, the Czech surnames include Hydlar and Hydlarcek, which vaguely proves that these similar surnames came from the Czech Republic. But this hypothesis is convincing only when it is proven that Hitler's grandfather is Johann Georg Hydler. So, I think it's good to take this theory for reference only to a little bit.