Frederick II

See:

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• Frederick II, Holy Roman Emperor (1194–1250, king 1211/12–1250, emperor since 1220)
• Frederick II of Austria (?–1246, duke of Austria 1230–1246)
• Frederick II of Sicily (1272–1337), who called himself Frederick III
• Frederick II, Margrave of Brandenburg (1413–1470, margrave 1440–1470)
• Frederick II of Denmark and Norway (1534–1588, king 1559–1588)
• Frederick II of Prussia (1712–1786, king 1740–1786), better known as Frederick the Great
• Frederick II of Hesse-Kassel (1720–1785) Landgrave of Hesse-Kassel