Agnes was the daughter of unknown parents. The date and place of her birth have not been found.
She died after 1280. The place is not known.
Her husband was sir William FitzThomas FitzWilliam. They were married, but the date and place have not been found. Their only known child was sir William (c1275-<1342).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Death | AFT 1280 |
|