Mabel of Gloucester was born circa 1095 to Robert Fitzhamon and Sibyl of Montgomery (c1072-c1119) and died 1156 of unspecified causes. She married Robert, 1st Earl of Gloucester (1090-1147) 1107 JL .
Children
| Name | Birth | Death | Joined with |
| William Fitz Robert, 2nd Earl of Gloucester (-1183) | 1183 | Hawise de Beaumont (c1125-c1172) | |
| Roger, Bishop of Worcester (-1179) | |||
| Hamon (-1159) | |||
| Robert of Ilchester (-bef1157) | |||
| Matilda of Gloucester (1120-1189) | 1120 United Kingdom | 1189 United Kingdom | Ranulph de Gernon, 2nd Earl of Chester (1099-1153) |
| Philip, Castellan of Cricklade (-aft1147) | |||
Footnotes (including sources)
| ‡ General |
| Ω Birth |
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