Ferdinand I of Portugal King of Portugal (1345–1383) Parents Constanza Manuel Peter I of Portugal Children Afonso de Portugal Isabella of Portugal, Lady of Viseu Beatrice of Portugal Siblings Infante Afonso Beatrice, Countess of Alburquerque Louis of Portugal Infanta Maria of Portugal John I of Portugal Maria, Marchioness of Tortosa Infante Dinís, Lord of Cifuentes Infante João, Duke of Valencia de Campos Partners Leonor Teles de Menezes
