Other non-reigning princes of the German nobility, but not (always) their cadets (e.g. the Princes von Bismarck, Carolath-Beuthen, Pless, Wrede).
Siegfried Karfunkelstein was a German soldier; born at Beuthen, Silesia, 21 February 1848; died on the field of battle at Le Bourget 30 October, 1870.