_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)         
|
|--Juana of TRASTÁMARA 
|  (1423 - 1425)
|                                                  _Charles II ÉVREUX ___+
|                                                 | (1332 - 1386)         
|                       _Charles III ÉVREUX _____|
|                      | (1361 - 1425)            |
|                      |                          |_Joan of VALOIS _______+
|                      |                            (1343 - 1373)         
|_Blanche of ÉVREUX __|
  (1387 - 1441)        |
                       |                           _Henry II TRASTÁMARA _+
                       |                          | (1333 - 1379)         
                       |_Eleanor of TRASTÁMARA __|
                         (1363 - 1415)            |
                                                  |_Juana Manuel IVREA ___+
                                                    (1339 - 1381)