_____________________________
                                                         |                             
                              _John I AVESNES ___________|
                             | (1218 - 1257)             |
                             |                           |_____________________________
                             |                                                         
 _Florent AVESNES ___________|
| (.... - 1298) m 1289       |
|                            |                            _Floris IV HOLLAND __________+
|                            |                           | (1210 - 1234)               
|                            |_Adelaide of HOLLAND ______|
|                              (1230 - 1284)             |
|                                                        |_Matilda of REGINAR _________
|                                                          (1200 - 1267)               
|
|--Matilda of AVESNES 
|  (1293 - 1331)
|                                                         _Geoffrey I VILLEHARDOUIN ___
|                                                        | (1169 - 1229)               
|                             _William II VILLEHARDOUIN _|
|                            | (.... - 1278) m 1258      |
|                            |                           |_____________________________
|                            |                                                         
|_Isabella of VILLEHARDOUIN _|
  (1260 - 1311) m 1289       |
                             |                            _Michael II Komnenos DOUKAS _+
                             |                           | (.... - 1266)               
                             |_Anna Komnene of DOUKAS ___|
                               (.... - 1285) m 1258      |
                                                         |_Theodora of PETRALIPHAS ____