Albrecht III was Elector of Brandenburg from 1471 until his death, the third from the House of Hohenzollern. A member of the Order of the Swan, he received the cognomen Achilles because of his knightly qualities and virtues. He also ruled in the Franconian principalities of Ansbach from 1440 and Kulmbach from 1464.

John, nicknamed the Alchemist was a Margrave of Brandenburg-Kulmbach and served as the peace-loving Margrave of Brandenburg after the abdication of his father, Frederick I, the first member of the House of Hohenzollern to rule Brandenburg.