______________________
                                                         |                      
                                   _Pietro II ORSEOLO ___|
                                  | (0961 - 1009)        |
                                  |                      |______________________
                                  |                                             
 _Giovanni ORSEOLO _______________|
| (.... - 1006) m 1004            |
|                                 |                       ______________________
|                                 |                      |                      
|                                 |_Maria CANDIANO ______|
|                                                        |
|                                                        |______________________
|                                                                               
|
|--Basilio ORSEOLO 
|  (.... - 1006)
|                                                         _Leo ARGYROS _________+
|                                                        |                      
|                                  _Romanos ARGYROS _____|
|                                 |  m 0921              |
|                                 |                      |______________________
|                                 |                                             
|_Maria Argyropoulins of ARGYROS _|
  (.... - 1006) m 1004            |
                                  |                       _Romanos I LEKAPENOS _+
                                  |                      | (0870 - 0948)        
                                  |_Agatha of LEKAPENOS _|
                                    (0908 - ....) m 0921 |
                                                         |_Theodora of UNKNOWN _
                                                           (.... - 0921)