Agnès was the daughter of unknown parents. The date and place of her birth have not been found.
She died after 1274. The place is not known.
Her husband was sir Nicolas II de Lalaing. They were married, but the date and place have not been found. Their only known child was Simon III (c1285-1333).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Death | AFT 1274 |
|