Albrecht II, archbishop of Mainz and Magdeburg is not the same man as Albrecht, Duke of Prussia (1490-1568). The two are both Hohenzollerns and share the same grandfather, Albrecht III ‘Achilles’ of Brandenburg.

Duke Albrecht’s father (Frederick I of Ansbach and Bayreuth) is the eldest son of Albrecht III, Margrave of Brandenburg – second marriage

Archbishop Albrecht’s father (John Cicero, Elector of Brandenburg) is the elder son of Albrecht III, Margrave of Brandenburg – first marriage