_John V of MONTOIRE ___+
                                                  | (1250 - 1315)         
                        _Bouchard VI of MONTOIRE _|
                       | (1290 - 1354) m 1320     |
                       |                          |_Eleonore of MONTFORT _+
                       |                                                  
 _John VI of MONTOIRE _|
| (.... - 1365)        |
|                      |                           _Arthur II of DREUX ___+
|                      |                          | (1262 - 1312) m 1292  
|                      |_Alix of DREUX ___________|
|                        (1298 - 1377) m 1320     |
|                                                 |_Yolande of DREUX _____+
|                                                   (1263 - 1330) m 1292  
|
|--Catherine of MONTOIRE 
|  (1354 - 1412)
|                                                  _John I IVREA _________+
|                                                 | (.... - 1302)         
|                       _John II IVREA ___________|
|                      | (1302 - 1343)            |
|                      |                          |_Ida of MEULAN ________
|                      |                                                  
|_Jeanne of IVREA _____|
  (1336 - 1376)        |
                       |                           _Philip of ARTOIS _____+
                       |                          | (1269 - 1298) m 1281  
                       |_Catherine of ARTOIS _____|
                         (1296 - 1368)            |
                                                  |_Blanche of DREUX _____+
                                                    (1271 - 1327) m 1281