1) German surname 
Berchtold (also Berthold, Bertold, Bertolt) is a German given name, from the Old High German beruht `bright` or `brightly` and waltan `rule over`. The name comes into fashion in the German High Middle Ages, from about the 11th century. The cognate Old English name is Beorhtwald, attested as the name of an archbishop in the 8th century. Berch...