_Lorenzo de' MEDICI ___+
                                                         | (1448 - 1492) m 1469  
                                    _Piero de' MEDICI ___|
                                   | (1471 - 1503)       |
                                   |                     |_Clarice ORSINI _______+
                                   |                       (1453 - 1488) m 1469  
 _Lorenzo de' MEDICI ______________|
| (1492 - 1519)                    |
|                                  |                      _Roberto ORSINI _______+
|                                  |                     | (.... - 1479)         
|                                  |_Alfonsina ORSINI ___|
|                                    (1472 - 1519)       |
|                                                        |_Caterina SANSEVERINO _
|                                                                                
|
|--Catherine de' MEDICI 
|  (1519 - 1588)
|                                                         _______________________
|                                                        |                       
|                                   _____________________|
|                                  |                     |
|                                  |                     |_______________________
|                                  |                                             
|_Madeleine of LA TOUR-D'AUVERGNE _|
  (1498 - 1519)                    |
                                   |                      _______________________
                                   |                     |                       
                                   |_____________________|
                                                         |
                                                         |_______________________