_Edward AVIZ ______________+
                                                  | (1391 - 1438)             
                        _Ferdinand AVIZ __________|
                       | (1433 - 1470) m 1447     |
                       |                          |_Eleonor of TRASTÁMARA ___+
                       |                            (1402 - 1444)             
 _Manuel I AVIZ _______|
| (1469 - 1521) m 1518 |
|                      |                           _John AVIZ ________________+
|                      |                          | (1399 - 1442)             
|                      |_Beatrice of AVIZ ________|
|                        (1430 - 1506) m 1447     |
|                                                 |_Isabella of BRAGANZA _____+
|                                                   (1402 - 1466)             
|
|--Maria of AVIZ 
|  (1521 - 1577)
|                                                  _Maximilian I HABSBURG ____+
|                                                 | (1458 - 1518)             
|                       _Philip I HABSBURG _______|
|                      | (1478 - 1506)            |
|                      |                          |_Mary of VALOIS-BURGUNDY __+
|                      |                            (1456 - 1482)             
|_Eleanor of HABSBURG _|
  (1498 - 1557) m 1518 |
                       |                           _Ferdinand II TRASTÁMARA _+
                       |                          | (1451 - 1515) m 1469      
                       |_Joanna I of TRASTÁMARA _|
                         (1479 - 1555)            |
                                                  |_Isabella I TRASTÁMARA ___+
                                                    (1451 - 1504) m 1469