Will the real Schicklgruber please stand up?

 

Adolf Hitler had a fairly bizarre family background. His parents were first cousins once removed, his father may have been half-Jewish (!), his half-nephew was named William Patrick Hitler and was born in Liverpool (!!), and one of his cousins was executed as part of the Nazi eugenics program?! And yes, his father´s real name was Schicklgruber. 

Note that the channel is hosted by a British historian, not a conspiracy theorist...