Marie de Beauffremont, Dame of Couches, was born circa 1280 to Pierre de Beauffremont (c1230-aft1295) and died 1334 of unspecified causes. She married Etienne I de Montagu (1273-1315) .
Children
| Name | Birth | Death | Joined with |
| Etienne II de Montagu (1296-1339) | |||
| Philibert I de Montagu (1300-1362) | 1300 | 1362 | Marie de Frolois |
Footnotes (including sources)
| ‡ General |
| Ω Birth |
|
| ¶ Death |
|