Holy Roman Emperor, n.
semantic pointers
hypernym
instance hyponym
Charlemagne, Carolus, Charles, Charles I, Charles the Great
Charles, Charles II, Charles I, Charles the Bald
Ferdinand I
Ferdinand II
Ferdinand III
Francis II, Emperor Francis II
Frederick I, Frederick Barbarossa, Barbarossa
Frederick II, Holy Roman Emperor Frederick II
Henry IV
Henry VII
Otto I, Otho I, Otto the Great