_Archambaud GRAILLY ______
| (1330 - 1412)
_John I FOIX _________|
| (1382 - 1436) m 1422 |
| |_Isabella of FOIX ________
| (1361 - 1428)
_Gaston IV FOIX _________|
| (1422 - 1472) |
| | __________________________
| | |
| |_Jeanne of ALBRET ____|
| m 1422 |
| |__________________________
|
|
|--John FOIX
| (1450 - 1500)
| _Ferdinand I TRASTÁMARA _+
| | (1380 - 1416)
| _John II TRASTÁMARA _|
| | (1398 - 1478) |
| | |_Eleanor of IVREA ________+
| | (1374 - 1435)
|_Eleanor of TRASTÁMARA _|
(1425 - 1478) |
| _Charles III ÉVREUX _____+
| | (1361 - 1425)
|_Blanche of ÉVREUX __|
(1387 - 1441) |
|_Eleanor of TRASTÁMARA __+
(1363 - 1415)