ALFONSO II of Aragon 1162-1196 | PEDRO II EMPEROR FREDERICK II 1196-1213 King of Naples | | JAMES I MANFRED “the Conqueror” (illegitimate) 1213-1276 | | | PEDRO III = CONSTANCE King of Aragon 1276-1285 King of Sicily 1282-1285 | +---------------------+ | | ALFONSO III JAMES II 1283-1291 1291-1327 | ALFONSO IV 1327-1336 | PEDRO IV 1336-1387 | +---------------+-----------------+ | | | JOHN I = ELEANOR JOHN I MARTIN I of Castile 1387-1395 1395-1410 | +---------------------------+ | | HENRY III FERDINAND I of Castile (chosen King of Aragon) 1412-1416 | +-------------------------+-----+ | | ALFONSO V JOHN II of Aragon 1416-1458 of Aragon of Naples 1435-1458 1458-1479 | | FERRANTE I FERDINAND = ISABEL King of Naples the Catholic of Castile (illegitimate) d. 1494 | +----+-----------+ | | ALFONSO II FADRIQUE d. 1495 (deposed 1501) | FERDINAND II d. 1296 ] [Illustration: 8. THE HOUSE OF CASTILE & LEON