Ferdinand IV of Castile Spanish monarch (1285–1312) Parents María de Molinillo Sancho IV of León and Castile Children Eleanor of Castile II Alfonso XI of Castile and Leon Siblings Alfonso de Castilla Violante Sánchez de Castilla Philip of Castile, Lord of Cabrera and Ribera Enrique de Castilla Peter of Castile, Lord of Cameros Isabella of Castile, Queen of Aragon Beatrice of Castile Tereza Sanchez bâtarde de Castilla Partners Constance of Portugal
