1046 - 1118 (72 years)
| Waleran Of Meulan DE BEAUMONT, Earl Of Worcester | |
| B: | 1104 |
| D: | 1166 |
 | Isabelle Fitzgilbert DE CLARE 1171-1220 |
| Isabelle Fitzgilbert DE CLARE | |
| B: | 1171 |
| D: | 1220 |
| William MARSHALL 1146-1219 |
| William MARSHALL | |
| B: | 1146 |
| D: | 1219 |
| Richard DE CLARE 1125-1176 |
| Richard DE CLARE | |
| B: | 1125 |
| D: | 1176 |
| Isabelle DE BEAUMONT, * Abt 1104-Aft 1172 |
| Isabelle DE BEAUMONT, * | |
| B: | Abt 1104 |
| Leicester, Leicestershire, England | |
| D: | Aft 1172 |
| Gilbert Fitzgilbert DE CLARE 1100-1148 |
| Gilbert Fitzgilbert DE CLARE | |
| B: | 1100 |
| D: | 1148 |
| Amice FITZROBERT 1160-1225 |
| Amice FITZROBERT | |
| B: | 1160 |
| D: | 1 Jan 1225 |
| Richard FitzRoger DE CLARE 1153-Abt 1217 |
| Richard FitzRoger DE CLARE | |
| B: | 1153 |
| D: | Abt 28 Nov 1217 |
| Mabel FITZROBERT GLOUCESTER 1155-1188 |
| Mabel FITZROBERT GLOUCESTER | |
| B: | 1155 |
| D: | 1188 |
| Gruffudd AP IFOR BACH Abt 1158-1211 |
| Gruffudd AP IFOR BACH | |
| B: | Abt 1158 |
| D: | 1211 |
| Hawise DE BEAUMONT 1129-1183 |
| Hawise DE BEAUMONT | |
| B: | 1129 |
| D: | 1183 |
| William FITZROBERT 1116-1183 |
| William FITZROBERT | |
| B: | 1116 |
| D: | 1183 |
| Margaret DE BEAUMONT 1154-1235 |
| Margaret DE BEAUMONT | |
| B: | 1154 |
| , Hampshire, ENG | |
| D: | 12 Jan 1235 |
| Saire DE QUINCY, First Earl Of Winchester | |
| B: | 1155 |
| Buckley, , ENG | |
| M: | Bef 1173 |
| D: | 3 Nov 1219 |
| , Palenstine | |
| Robert DE BEAUMONT, Iii Earl Of Leicester | |
| B: | 1121 |
| Of Co. Leicestershire, ENG | |
| D: | 31 Aug 1190 |
| Durazzo, , GRC | |
| Petronill Or Pernell DE GRANTMESNIL Abt 1134-1212 |
| Petronill Or Pernell DE GRANTMESNIL | |
| B: | Abt 1134 |
| Of Eng | |
| M: | Abt 1155 |
| D: | 1 Apr 1212 |
| Leicester, , ENG | |
| Robert DE BEAUMONT, Earl Of Leicester 1104-1168 |
| Robert DE BEAUMONT, Earl Of Leicester | |
| B: | 1104 |
| Normandy, , , FRA | |
| D: | 5 Apr 1168 |
| Amice DE MONTFORT Abt 1100-Aft 1168 |
| Amice DE MONTFORT | |
| B: | Abt 1100 |
| , , , England | |
| M: | Aft Nov 1120 |
| D: | Aft Apr 1168 |
|
| Sir Robert 1St Earl Of Leister DE BEAUMONT | |
| B: | 1046 |
| Of Beaumont, , FRA | |
| D: | 5 Jun 1118 |
| Of Preaux, , FRA | |
| Isabelle (Elizabeth) DE VERMANDOIS 1081-1131 |
| Isabelle (Elizabeth) DE VERMANDOIS | |
| B: | 1081 |
| Vermandois, , FRA | |
| M: | 1096 |
| D: | 17 Feb 1131 |
| St. Nicaise, Meulan, FRA | |
| Amica DE GAEL 1100-1168 |
| Amica DE GAEL | |
| B: | 1100 |
| D: | 1168 |
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