Cecilia of Brandenburg
Duchess of Brunswick-Calenberg
(1405–1449)
Parents
Elisabeth of Bavaria, Electress of Brandenburg
Frederick I, Elector of Brandenburg
Children
William IV, Duke of Brunswick-Lüneburg
Frederick III, Duke of Brunswick-Lüneburg
Siblings
Margaret of Brandenburg
Magdalene of Brandenburg
Frederick II, Elector of Brandenburg
Frederick of Altmark
Elisabeth of Brandenburg, Duchess of Brzeg-Legnica and Cieszyn
Dorothea of Brandenburg, Duchess of Mecklenburg
John, Margrave of Brandenburg-Kulmbach
Albrecht III Achilles, Elector of Brandenburg
Sofie von Hohenzollern
Partners
William the Victorious, Duke of Brunswick-Lüneburg