Clark's report was criticised by two historians commissioned by the German state to consider the Hohenzollern claims: , a specialist in Prussia and imperial Germany at the University of Hagen, and , a German historian at the University of Edinburgh, who is the author of the standard work on the relationship between the German aristocracy and the Nazi movement, "Vom König zum Führer" (2003). Brandt and Malinowski provided substantial further evidence of Wilhelm's support for the Nazis that Clark had overlooked. Their two reports leave no doubt about the prince's deep-seated anti-Semitism.