Margaret fitzEudo de Rie was born circa 1076 in Rycott to Eudo de Rie (-1120) and Rohese FitzRichard de Clare (-1121) and died circa 1130 Rickling of unspecified causes. She married William de Mandeville (-1129) .
Children
| Name | Birth | Death | Joined with |
| Geoffrey de Mandeville (-1144) | |||
| Beatrice de Mandeville (-1197) | 1105 England | 1197 England | William de Say (-1144) |
| Alice de Mandeville | |||
| Gilbert de Mandeville | |||
| Gautier de Mandeville | |||
Footnotes (including sources)
| ‡ General |