Isabelle was born about 1255, the daughter of unknown parents. The place is not known.
She died in 1308. The place is not known.
Her husband was Augustin de Crécy-en-Ponthieu. They were married, but the date and place have not been found. Their only known child was Antoine (1273-1331).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1255 |
|
|||
| Death | 1308 |
|