_Peter I BURGUNDY __________+ | (1320 - 1366) _John I AVIZ ___________| | (1357 - 1433) m 1387 | | |_Teresa LOURENÇO __________ | _Duarte AVIZ ___________| | (1391 - 1438) | | | _John of Gaunt PLANTAGENET _+ | | | (1339 - 1398) | |_Philippa of LANCASTER _| | (1360 - 1415) m 1387 | | |_Blanche of PLANTAGENET ____+ | (1342 - 1368) | |--Ferdinand AVIZ | (1433 - 1470) | ____________________________ | | | ________________________| | | | | | |____________________________ | | |_Leonor of TRASTÁMARA _| (1402 - 1444) | | ____________________________ | | |________________________| | |____________________________