Gervaise was the daughter of unknown parents. The date and place of her birth have not been found.
She died in 1238. The place is not known.
Her husband was Juhaël III de Mayenne. They were married, but the date and place have not been found. Their only known child was Marguerite (?-<1256).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Death | 1238 |
|
Note 1
Note 2
continued in Richards tree