| Henry I, King of England (ca1068 - 1135) |
Robert FITZHAMON , Lord of Glamorgan, Earl of Gloucester, Lord of Creully (? - ?) |
| Sybilla CORBET (? - ?) |
Sibyl DE MONTGOMERY (? - ?) |
| Robert DE CAEN , Earl of Gloucester | Mabel FITZHAMON |
| ali. Robert of Gloucester, Robert de Mellent b. ca 1090, Caen, Calvados, Basse-Normandie, France bp. d. Oct 31, 1147, Bristol, Somerset, England bur. Bristol, Somerset, England occ. rel. edu. |
ali. b. ? bp. d. 1157 bur. occ. rel. edu. |
| William FITZROBERT , Earl of Gloucester Maud FITZROBERT |