Thanks V2.
Thought I'd just add something here that might be of interest to some.
Back in '40 when my wife's father joined the army, they wouldnt let him or any one else with a Von name, put Von in front of his name in his pay book .
They said it was for his own protection, as during the 1st World War the Germans shot such soldiers in the allied armies as traitors if they were taken prisoner.
It wasn't until after the war that he assumed his full name again.