Agnès de Montfort was born on an unknown date to Amaury III de Montfort (-1137) and Agnès de Garlande (?-?) and died 1181 of unspecified causes. She married Waleran de Beaumont, 1st Earl of Worcester (1104-1166) 1141 JL .
Children
| Name | Birth | Death | Joined with |
| Robert de Beaumont, Count of Meulan (c1142-1204) | 1142 | 1204 | Maud FitzRoy (c1143-) |
| Maud de Beaumont (-1189) | 1114 England | 1189 England | William Lovel (-1175) |
| Isabelle de Meulan (1147-1206) | 1147 | 1206 | Geoffroy de Mayenne (c1126-1169) Maurice II de Craon (1126-1196) |
| Waleran de Meulan | |||
| Amaury I de Meulan (c1150-c1196) | 1150 | 1196 | Adèle de Luzarches |
| Roger de Meulan or Beaumont, viscount of Evreux | |||
| Raoul (Ralph) de Meulan | |||
| Etienne (Stephen) de Meulan | |||
| Marie de Meulan (c1160-c1207) | 1160 | 1207 | Hué de Talbot |
Footnotes (including sources)