Peter, Duke of Coimbra Regent of Portugal (1392-1449) (1392–1449) Parents Philippa of Lancaster John I of Portugal Children Infanta Beatrice of Coimbra John, Prince of Antioch Isabella of Coimbra Infanta Philippa of Coimbra James of Coimbra Peter, Constable of Portugal Siblings Isabella of Portugal, Duchess of Burgundy John, Constable of Portugal Prince Henry the Navigator Afonso I Edward I of Portugal Beatrice, Countess of Arundel Ferdinand the Holy Prince Blanca de Aviz Afonso de Portugal Partners Isabella of Urgell, Duchess of Coimbra
