The Kaiser and von Ribbentrop had English accents.
Now that you mention, so did the whole Von Trapp family.
Landlady Oh I'm sorry I didn't introduce you. This is Ron...Ron Vibbentrop.
Johnson Oh, not Von Ribbentrop, eh?
Von Ribbentrop Nein! Nein! Nein! Oh!! Ha, ha, ha. Different other chap. I in Somerset am being born. Von Ribbentrop is born Gotterdammerstrasse 46, Dusseldorf Vest 8.....so they say!