Luigi di Castiglia son of Fernando III of Castile and Juana de Ponthieu. Infante of Castile and Lord of Marchena. person ID=41922 (1243–1279) Parents Joan, Countess of Ponthieu Ferdinand III of Castille Children Siblings Frederick of Castile Ferdinando di Castiglia Ferdinand, Count of Aumale Infante Henry of Castile Philip of Castile Berenguela de Castilla Eleanor of Castile Manuel of Castile Alfonso X of Castile and Leon Simon of Castille Juan de Castilla Leonor de Castilla Maria de Castilla Sancho of Castile