_Obizzo III ESTE ____+
                                              | (1294 - 1351)       
                         _Alberto ESTE _______|
                        | (1346 - 1393)       |
                        |                     |_____________________
                        |                                           
 _Niccolo III ESTE _____|
| (1383 - 1441)         |
|                       |                      _____________________
|                       |                     |                     
|                       |_____________________|
|                                             |
|                                             |_____________________
|                                                                   
|
|--Sigismondo ESTE 
|  (1433 - 1507)
|                                              _____________________
|                                             |                     
|                        _____________________|
|                       |                     |
|                       |                     |_____________________
|                       |                                           
|_Ricciarda of SALUZZO _|
  (1410 - 1474)         |
                        |                      _____________________
                        |                     |                     
                        |_____________________|
                                              |
                                              |_____________________