Frederick I Elector of Saxony (1370–1428) Parents Catherine of Henneberg Frederick III Children Henry of Saxony Sigismund of Saxony Catherine of Saxony, Electress of Brandenburg Anna of Saxony, Landgravine of Hesse William III Frederick II Siblings George of Meissen William II, Margrave of Meissen Frederick of Meissen Partners Catherine of Brunswick-Lüneburg
