_Giovanni de' MEDICI ______________+
                                                   | (1467 - 1498)                     
                         _Ludovico de' MEDICI _____|
                        | (1498 - 1526)            |
                        |                          |_Caterina SFORZA __________________
                        |                            (1463 - 1509)                     
 _Cosimo I de' MEDICI __|
| (1519 - 1574)         |
|                       |                           _Jacopo SALVIATI __________________
|                       |                          | (1461 - 1533)                     
|                       |_Maria SALVIATI __________|
|                         (1499 - 1543)            |
|                                                  |_Lucrezia Maria Romola de' MEDICI _+
|                                                    (1470 - 1553)                     
|
|--Pietro de' MEDICI 
|  (1554 - 1604)
|                                                   _Fadrique Alvarez ALBA ____________+
|                                                  | (1460 - 1531) m 1480              
|                        _Pedro Alvarez ALBA ______|
|                       | (1484 - 1552) m 1508     |
|                       |                          |_Isabel of ZUNIGA-Y-PIMENTAL ______
|                       |                            (1470 - 1520) m 1480              
|_Eleanor Alvarez ALBA _|
  (1521 - 1562)         |
                        |                           ___________________________________
                        |                          |                                   
                        |_Maria OSORIO-Y-PIMENTEL _|
                           m 1508                  |
                                                   |___________________________________