_Roger I of TOSNY ____________+
                                                | (.... - 1040) m 1018         
                           _Raoul II of TOSNY __|
                          | (1027 - 1102)       |
                          |                     |_Adelaide Ramon of BARCELONA _+
                          |                       (1004 - 1034) m 1018         
 _Raoul III of TOSNY _____|
| (1079 - 1126)           |
|                         |                      _Simon I of MONTFORT _________+
|                         |                     | (1025 - 1087)                
|                         |_Isabel of MONTFORT _|
|                           (1057 - 1147)       |
|                                               |_Isabel de BROYES ____________
|                                                 (1034 - ....)                
|
|--Roger III TOSNY 
|  (1104 - 1162)
|                                                ______________________________
|                                               |                              
|                          _____________________|
|                         |                     |
|                         |                     |______________________________
|                         |                                                    
|_Adelise of NORTHUMBRIA _|
                          |
                          |                      ______________________________
                          |                     |                              
                          |_____________________|
                                                |
                                                |______________________________