______________________________
                                                       |                              
                         _Richard I ORSINI ____________|
                        | (.... - 1303) m 1299         |
                        |                              |______________________________
                        |                                                             
 _John I ORSINI ________|
| (.... - 1317)         |
|                       |                               _William II of VILLEHARDOUIN _+
|                       |                              | (1211 - 1278) m 1258         
|                       |_Margaret of VILLEHARDOUIN ___|
|                         (1266 - 1314) m 1299         |
|                                                      |_Anna KOMNENOSDOUKAS _________+
|                                                        (.... - 1285) m 1258         
|
|--Nicholas ORSINI 
|  (.... - 1323)
|                                                       _Michael II KOMNENOSDOUKAS ___+
|                                                      | (.... - 1266)                
|                        _Nikephoros I KOMNENOSDOUKAS _|
|                       | (.... - 1297)                |
|                       |                              |_Theodora PETRALIPHAS ________+
|                       |                                (1210 - ....)                
|_Maria KOMNENOSDOUKAS _|
                        |
                        |                               _Theodore II Doukas LASKARIS _+
                        |                              | (1222 - 1258)                
                        |_Maria Laskaris VATATZES _____|
                          (.... - 1268)                |
                                                       |_Elena of ASEN _______________+
                                                         (1224 - 1251)