Adolf Hitler's family background is very chaotic and complicated. The origin of the name Hitler should be said by his grandfather. The ancestor of the future German head of state lives in Val Wittler, a county town between the Austrian Danube and the borders of Bohemia and Moravia. This is a hilly area with dense forests and the hinterland of the Austro-Hungarian Empire. It's like close relatives of Czech farmers get married, and then Adolf Hitler's parents are. There are many illegitimate children. Adolf Hitler's grandfather's real name was John Georg Chytra, and the name Hitler was changed from Adolf Hitler's grandfather's original surname Shidla. Adolf's father took his mother's surname, because Adolf's father Alois Chytra was also an illegitimate child. He was born on1June 7th, 837. Before the age of 39, he used his mother's surname, Schell gruber, so the name alois Schell gruber accompanied Adolf's father for most of his life. Although there is no evidence to prove that John Georg Shidla is the father of alois Schell gruber, John Georg Shidla appeared in Waldvettel and Vitner town after 30 years of disappearance, and acknowledged the father-son relationship in notarization. At this time, their surnames.