_Ferdinand I TRASTÁMARA _+ | (1380 - 1416) _Alfonso V TRASTÁMARA _| | (1396 - 1458) | | |_Eleanor of IVREA ________+ | (1374 - 1435) _Ferdinand I TRASTÁMARA _| | (1423 - 1493) | | | _Henry III TRASTÁMARA ___+ | | | (1379 - 1406) | |_Maria of TRASTÁMARA __| | (1401 - 1458) | | |_Catherine of LANCASTER __+ | (1373 - 1418) | |--Francis TRASTÁMARA | (1461 - 1486) | __________________________ | | | ________________________| | | | | | |__________________________ | | |_Isabella of CLERMONT ____| (1424 - 1465) | | __________________________ | | |________________________| | |__________________________