Isabel de Beaumont was born circa 1102 in Lancashire, England to Robert de Beaumont (1049-1118) and Elizabeth de Vermandois (c1081-1131) and died circa 1172 of unspecified causes. She married Gilbert de Clare, 1st Earl of Pembroke (c1100-1148) 1116 JL .
Children
| Name | Birth | Death | Joined with |
| Richard de Clare, 2nd Earl of Pembroke (1130-1176) | 1130 | 20 April 1176 | Eva McMurrough |
Residences