- Frederick I - son of Frederick William who in 1701 became the first king of Prussia (1657-1713)
--1 is a kind of king, male monarch
--1 is a member of Hohenzollern- Frederick I, Frederick Barbarossa, Barbarossa - Holy Roman Emperor from 1152 to 1190; conceded supremacy to the pope; drowned leading the Third Crusade (1123-1190)
--2 is a kind of Holy Roman Emperor
- Frederick I, Frederick Barbarossa, Barbarossa - Holy Roman Emperor from 1152 to 1190; conceded supremacy to the pope; drowned leading the Third Crusade (1123-1190)