_Fulk IV CHÂTEAUDUN _________+
                                                    | (1043 - 1109) m 1089         
                           _Fulk V CHÂTEAUDUN _____|
                          | (1089 - 1143) m 1110    |
                          |                         |_Bertrade of MONTFORT ________+
                          |                           (1070 - 1116) m 1089         
 _Geoffrey V PLANTAGENET _|
| (1113 - 1151)           |
|                         |                          _Elias I BAUGENCY ____________
|                         |                         | (.... - 1110) m 1090         
|                         |_Ermengarde of BAUGENCY _|
|                           (1092 - 1125) m 1110    |
|                                                   |_Matilda of CHÂTEAU-DU-LOIR _
|                                                     (1055 - 1109) m 1090         
|
|--William PLANTAGENET 
|  (1136 - 1163)
|                                                    _William I NORMANDY __________+
|                                                   | (1028 - 1087) m 1051         
|                          _Henry I NORMANDY _______|
|                         | (1068 - 1135) m 1100    |
|                         |                         |_Matilda of FLANDERS _________+
|                         |                           (1031 - 1083) m 1051         
|_Matilda of NORMANDY ____|
  (1101 - 1167)           |
                          |                          _Malcom III DUNKELD __________+
                          |                         | (1031 - 1093)                
                          |_Matilda DUNKELD ________|
                            (1080 - 1118) m 1100    |
                                                    |_Margaret of WESSEX __________+
                                                      (1045 - 1093)