Hitler was in Austria when he was four years old. This story says the river is in Germany.
He grew up nr the Austria-German border, on the river...
http://en.wikipedia.org/wiki/Braunau_am_Inn
Town on the border.
>>Adolf Hitler was born in Braunau am Inn on 20 April 1889. He and his family left Braunau and moved to Passau in 1892.