_Ferdinand IV IVREA ____________+
                                             | (1285 - 1312)                  
                       _Alfonso XI BURGUNDY _|
                      | (1311 - 1350) m 1328 |
                      |                      |_Constanza Dinisez of BURGUNDY _+
                      |                        (1289 - 1313)                  
 _Peter IVREA ________|
| (1334 - 1368)       |
|                     |                       _Afonso IV BURGUNDY ____________+
|                     |                      | (1290 - 1357)                  
|                     |_Maria of BURGUNDY ___|
|                       (1312 - 1356) m 1328 |
|                                            |_Beatrice of IVREA _____________+
|                                              (1292 - 1359)                  
|
|--Constance of IVREA 
|  (1354 - 1393)
|                                             ________________________________
|                                            |                                
|                      ______________________|
|                     |                      |
|                     |                      |________________________________
|                     |                                                       
|_Maria of PADILLA ___|
                      |
                      |                       ________________________________
                      |                      |                                
                      |______________________|
                                             |
                                             |________________________________