1021 - 1098 (76 years)
 | 1st Earl of Somerset Sir William de Mohun, II Abt 1090-Abt 1156 |
| 1st Earl of Somerset Sir William de Mohun, II | |
| B: | Abt 1090 |
| Dunster, Somerset, England | |
| D: | Abt 1156 |
| Dunster, Somerset, England | |
 | Countess of Somerset Lady Agnes de Gant 1105-Abt 1155 |
| Countess of Somerset Lady Agnes de Gant | |
| B: | 5 Oct 1105 |
| Lincolnshire, England | |
| M: | Abt 1121 |
| Whichford, Warwickshire, England | |
| D: | Abt 1155 |
| Dunster, Somerset, England | |
| Sheriff of Somerset Sir William le Viel de Moion, I 1061-Abt 1097 |
| Sheriff of Somerset Sir William le Viel de Moion, I | |
| B: | 1061 |
| Somerset, England | |
| D: | Abt 1097 |
| England | |
 | Adeliz de Moion 1081-Abt 1100 |
| Adeliz de Moion | |
| B: | 1081 |
| Dunster, Somerset, England | |
| M: | Dunster, Somerset, England |
| D: | Abt 1100 |
| Somerset, England | |
 | Adeliz de Ponthieu 1055-1090 |
| Adeliz de Ponthieu | |
| B: | 1055 |
| Normandy, France | |
| D: | 1090 |
| Dunster, Somerset, England | |
| Lord William de Mohun 1045-1100 |
| Lord William de Mohun | |
| B: | 1045 |
| Cotentin, Côtes-d'Armor, Bretagne, France | |
| M: | Dunster, Somerset, England |
| D: | 1100 |
| Dunster, Somerset, England | |
|
| Countess of Aumale Adelaide de Normandy 1021-1098 |
| Countess of Aumale Adelaide de Normandy | |
| B: | 14 Oct 1021 |
| Falaise, Calvados, Basse-Normandie, France | |
| D: | 3 Aug 1098 |
| Boulogne, Hauts-de-Seine, Île-de-France, France | |
| Count of Ponthieu Enguerrand de Ponthieu, II | |
| B: | 1030 |
| Somme, Picardie, France | |
| M: | Marriage annulled in 1049 After Council of Reims |
| D: | 20 Nov 1052 |
| Arques, Seine-Maritime, Haute-Normandie, France | |
We make every effort to document our research. There is a lot of information that I do not have, and I know there are mistakes in this tree. My feelings will not be hurt if you give me corrections or additional information, especially if you can provide sources for the information.
