I am in the process of researching a book about Hitler. Can anybody out there assist me in providing information on the movement of the subject painting from the time it allegedly left the bunker with the SS sergeant. History says that it was held by the Russian after his capture but the painting is now on display at Charlotten Palace the former residence of Frederick the great. How did it get there and where did it come from. Their was some information out there that suggested that it was acquired from Spain. Any assistance would be appreciated. Paul Zeke (Aust)