Hitler didn’t change his name, it was his father who chenged his name from Schicklgruber to Hitler 10 years before Adolph Hitler was born.
Source: http://en.wikipedia.org/wiki/Alois_Hitler
Hitler’s grandparents were related, so both his father and his mother had claim to both names (Schicklgruber and Heidler or Hitler) and because Adolph Hitler’s father was illegitimate, he bore his mother’s surname and then changed his name to Hitler.
The name was finally selected by the junior Adolph, originally known as Alois, as the most advantageous, least Austrian sounding name among the many to which he had a right.
Like Obama, Hitler came from a confused, dysfunctional family and, like the boll-weevil, was always lookin for a home. It’s a pity that they both found their home in being sociopathic dictators.