_Herve of MONTMORENCY _+
                                                            | (1025 - 1096)         
                              _Bouchard III of MONTMORENCY _|
                             | (1073 - 1132) m 1086         |
                             |                              |_Agnes of UNKNOWN _____
                             |                                                      
 _Matthew I of MONTMORENCY __|
| (1090 - 1160) m 1126       |
|                            |                               _Yves II BEAUMONT _____+
|                            |                              | (1040 - 1083)         
|                            |_Agnes of BEAUMONT ___________|
|                              (.... - 1105) m 1086         |
|                                                           |_Adelaide of GOURNAY __
|                                                             (1055 - 1099)         
|
|--Bouchard IV of MONTMORENCY 
|  (1135 - 1189)
|                                                            _William I NORMANDY ___+
|                                                           | (1028 - 1087) m 1051  
|                             _Henry I NORMANDY ____________|
|                            | (1068 - 1135)                |
|                            |                              |_Matilda of FLANDERS __+
|                            |                                (1031 - 1083) m 1051  
|_Alice FitzRoy of NORMANDY _|
   m 1126                    |
                             |                               _______________________
                             |                              |                       
                             |______________________________|
                                                            |
                                                            |_______________________