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Frederick II
1194-1250.
Holy Roman emperor (1212-1250) and king of Sicily (1198-1250) as Frederick I. He led the Sixth Crusade (1228-1229), capturing Jerusalem, and was in continual conflict with the papacy.
Known as Frederick the Great. 1712-1786.
King of Prussia (1740-1786). Successful in the War of the Austrian Succession (1740-1748) and the Seven Years' War (1756-1763), he brought Prussia great military prestige in Europe.
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