_Afonso IV BURGUNDY _____+
                                                      | (1290 - 1357)           
                          _Peter I BURGUNDY __________|
                         | (1320 - 1366)              |
                         |                            |_Beatrice of IVREA ______+
                         |                              (1292 - 1359)           
 _John I AVIZ ___________|
| (1357 - 1433) m 1387   |
|                        |                             _________________________
|                        |                            |                         
|                        |_Teresa LOURENÇO __________|
|                                                     |
|                                                     |_________________________
|                                                                               
|
|--Afonso AVIZ 
|  (1390 - 1400)
|                                                      _Edward III PLANTAGENET _+
|                                                     | (1312 - 1377) m 1327    
|                         _John of Gaunt PLANTAGENET _|
|                        | (1339 - 1398)              |
|                        |                            |_Philippa of AVESNES ____+
|                        |                              (1311 - 1369) m 1327    
|_Philippa of LANCASTER _|
  (1360 - 1415) m 1387   |
                         |                             _Henry PLANTAGENET ______+
                         |                            | (1310 - 1360)           
                         |_Blanche of PLANTAGENET ____|
                           (1342 - 1368)              |
                                                      |_Isabel of BEAUMONT _____+
                                                        (1315 - 1360)