_Peter I BURGUNDY __________+
| (1320 - 1366)
_John I AVIZ ______________|
| (1357 - 1433) m 1387 |
| |_Teresa LOURENÇO __________
|
_John AVIZ ____________|
| (1399 - 1442) |
| | _John of Gaunt PLANTAGENET _+
| | | (1339 - 1398)
| |_Philippa of LANCASTER ____|
| (1360 - 1415) m 1387 |
| |_Blanche of PLANTAGENET ____+
| (1342 - 1368)
|
|--Isabella of AVIZ
| (1428 - 1496)
| _John I AVIZ _______________+
| | (1357 - 1433)
| _Afonso I BRAGANZA ________|
| | (1377 - 1461) m 1400 |
| | |_Inés PIRES _______________
| |
|_Isabella of BRAGANZA _|
(1402 - 1466) |
| ____________________________
| |
|_Beatriz PEREIRA DE ALVIM _|
(1380 - 1414) m 1400 |
|____________________________