_John I TRASTÁMARA ___+
| (1358 - 1390)
_Ferdinand I TRASTÁMARA _____|
| (1380 - 1416) |
| |_Eleanor of BARCELONA _
| (1357 - 1382)
_John II TRASTÁMARA _|
| (1398 - 1478) |
| | _Sancho Alfonso IVREA _+
| | | (1342 - 1373)
| |_Eleanor of IVREA ____________|
| (1374 - 1435) |
| |_Beatrice of BURGUNDY _+
| (1347 - 1381)
|
|--Joanna of TRASTÁMARA
| (1455 - 1516)
| _Alonso ENRÍQUEZ _____+
| | (1354 - 1429)
| _Fadrique ENRÍQUEZ __________|
| | (1390 - 1473) |
| | |_Juana DE MENDOZA _____
| |
|_Juana ENRÍQUEZ _____|
(1425 - 1467) |
| _______________________
| |
|_Mariana Fernández of AYALA _|
(1394 - 1431) |
|_______________________