Frederick II, Margrave of Brandenburg

Frederick II "the Iron" (sometimes "Irontooth") (1413-1470) of the Hohenzollern dynasty, was margrave of Brandenburg, from 1440 until his abdication in 1470.

His brothers included John the Alchemist[?], and Albert Achilles, both of whom also ruled Brandenburg. Their parents were Frederick I, Brandenburg's first Hohenzollern ruler, and his wife Elizabeth of Bavaria-Landshut.

He also had relations with many great people of the time such as Voltaire and others.