1104 - 1168 (64 years)
| Sir Gilbert DE CLARE | |
| B: | Abt 1180 |
| D: | 25 Oct 1230 |
| Isabella MARSHALL, * | |
| B: | 1200 |
| Pembroke Castle, Pembroke, , Pembroke, Wales | |
| M: | 9 Oct 1217 |
| D: | 1239 |
| Maud DE CLARE | |
| B: | Abt 1180 |
| , , England | |
| D: | Aft 10 Jul 1220 |
| , , England | |
| William DE BRAOSE | |
| B: | 1175 |
| Bramber, Sussex, ENG | |
| D: | 1210 |
| Corfe Castle, Dorset, England | |
| Amice FITZROBERT | |
| B: | 1160 |
| D: | 1 Jan 1225 |
| Richard FitzRoger DE CLARE | |
| B: | 1153 |
| D: | Abt 28 Nov 1217 |
| Mabel FITZROBERT GLOUCESTER | |
| B: | 1155 |
| D: | 1188 |
| Gruffudd AP IFOR BACH | |
| B: | Abt 1158 |
| D: | 1211 |
| Hawise DE BEAUMONT | |
| B: | 1129 |
| D: | 1183 |
| William FITZROBERT | |
| B: | 1116 |
| D: | 1183 |
| John DE QUINCY | |
| B: | Abt 1182 |
| Winchester, Hampshire, ENG | |
| D: | Yes, date unknown |
| Reginald DE QUINCY | |
| B: | Abt 1184 |
| Winchester, Hampshire, ENG | |
| D: | Yes, date unknown |
| Roger DE QUINCY | |
| B: | Abt 1174 |
| Winchester, Hampshire, ENG | |
| D: | 25 Apr 1264 |
| , , ENG | |
| Helen MCDONALD DE GALLOWAY | |
| B: | 1195 |
| Of Carrick, Ayrshire, SCT | |
| D: | Aft 21 Nov 1245 |
| Brackley, Northampton, ENG | |
| Orabella DE QUINCY | |
| B: | 1186 |
| Winchester, Harvourt, Leicistershire, ENG | |
| D: | Aft 1258 |
| Sir Richard DE HARCOURT | |
| B: | 1202 |
| Stanton, Harcourt, Oxfordshire, ENG | |
| M: | Bef 1227 |
| D: | Bef 2 Apr 1258 |
| Loretta DE QUINCY | |
| B: | Abt 1180 |
| Winchester, Hampshire, ENG | |
| D: | Yes, date unknown |
| William DE VALOGNES | |
| B: | Abt 1178 |
| Of Panmure, Forfar | |
| M: | Bef 1214 |
| D: | 1219 |
| Kelso | |
| Hawise DE QUINCY | |
| B: | 1178 |
| Winchester, Hampshire, ENG | |
| D: | Aft 3 Feb 1262 |
| Hugh DE VERE, Earl Of Oxford | |
| B: | Abt 1210 |
| Hatfield, Essex, ENG | |
| M: | Abt 11 Feb 1222 |
| D: | Bef 23 Dec 1263 |
| Robert DE QUINCY | |
| B: | 1188 |
| D: | Aug 1257 |
| London, Middlesex, ENG | |
| Helen VERCH LLEWELLYN, Fawr Of Wales | |
| B: | 1 Nov 1207 |
| Gwynedd, , Wales | |
| D: | 24 Oct 1253 |
| Stevington, , ENG | |
| 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 | |
| B: | Abt 1134 |
| Of Eng | |
| M: | Abt 1155 |
| D: | 1 Apr 1212 |
| Leicester, , ENG | |
|
| Robert DE BEAUMONT, Earl Of Leicester | |
| B: | 1104 |
| Normandy, , , FRA | |
| D: | 5 Apr 1168 |
| Amice DE MONTFORT | |
| B: | Abt 1100 |
| , , , England | |
| M: | Aft Nov 1120 |
| D: | Aft Apr 1168 |
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