Mabel de Marmion was born on an unknown date to Robert de Marmion (1095-1143) and Elisabeth de Rethel (c1122-) and died 1210 of unspecified causes. She married Hugh de Say (-1197) .
Children
| Name | Birth | Death | Joined with |
| Margaret de Say (-bef1242) | December 1242 | Hugh de Ferrers (-1204) Robert de Mortimer (-1219) William de Stuteville (-bef1259) | |
Footnotes (including sources)
| ‡ General |