frederick_i has definitions from the field of politics
1
[ noun ] (politics) son of Frederick William who in 1701 became the first king of Prussia (1657-1713)

Related terms

king Hohenzollern

2
[ noun ] (politics) Holy Roman Emperor from 1152 to 1190; conceded supremacy to the pope; drowned leading the Third Crusade (1123-1190)

Related terms

Holy_Roman_Emperor

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