Infante Ferdinand, Duke of Viseu Portuguese prince (1433–1470) Parents Eleanor of Aragon Edward I of Portugal Children Eleanor of Viseu Manuel I of Portugal Diogo I, Duke of Viseu Infante John, Duke of Viseu Isabella of Viseu Siblings Catherine of Portugal Eleanor of Portugal, Holy Roman Empress Joan of Portugal Afonso V of Portugal Joao Manoel bâtard de Portugal, Bishop of Couta, Primate of Africa João Manuel, Bishop of Guarda Partners Infanta Beatrice, Duchess of Viseu
