Amice FitzWilliam of Gloucester, Countess of Gloucester, was born circa 1160 to William Fitz Robert, 2nd Earl of Gloucester (-1183) and Hawise de Beaumont (c1125-c1172) and died 1220 of unspecified causes. She married Richard de Clare, 4th Earl of Hertford (c1153-1218) 1172 JL .
Children
| Name | Birth | Death | Joined with |
| Maud de Clare (c1176-1213) | 1176 | 1213 | William de Braose (1175-1210) |
| Gilbert de Clare, 5th Earl of Hertford (1180-1230) | 1180 | 25 October 1230 | Isabel Marshal (1200-1240) |
| Richard de Clare (c1184-1228) | |||
| Joane de Clare (c1186-?) | |||
Footnotes (including sources)