_John I AVIZ ___________+
| (1357 - 1433) m 1387
_Duarte AVIZ ___________|
| (1391 - 1438) |
| |_Philippa of LANCASTER _+
| (1360 - 1415) m 1387
_Alfonso V AVIZ _____|
| (1431 - 1481) |
| | ________________________
| | |
| |_Leonor of TRASTÁMARA _|
| (1402 - 1444) |
| |________________________
|
|
|--John II AVIZ
| (1454 - 1495)
| _John I AVIZ ___________+
| | (1357 - 1433) m 1387
| _Peter AVIZ ____________|
| | (1392 - 1449) m 1429 |
| | |_Philippa of LANCASTER _+
| | (1360 - 1415) m 1387
|_Isabel of AVIZ _____|
(1431 - 1455) |
| _James II BARCELONA ____+
| | (1380 - 1433)
|_Isabella of BARCELONA _|
(1408 - 1459) m 1429 |
|_Isabella of BARCELONA _+
(1376 - 1424)