Philippa of Lancaster English noblewoman and Portuguese queen consort (1360–1415) Parents Blanche of Lancaster John of Gaunt Children Ferdinand the Holy Prince Afonso de Portugal Isabella of Portugal, Duchess of Burgundy Prince Henry the Navigator Edward I of Portugal Peter, Duke of Coimbra Blanca de Aviz John, Constable of Portugal Siblings John Beaufort, 1st Earl of Somerset Joan Beaufort, Countess of Westmorland Thomas Beaufort, Duke of Exeter Henry IV of England Henry Beaufort Elizabeth of Lancaster, Duchess of Exeter Catherine of Lancaster Edward Planatagenet John Plantagenet John of Lancaster John Plantagenet Blanche Plantagenet Partners John I of Portugal
