Isabelle was born about 1205, the daughter of unknown parents. The place is not known.
She died after 1278. The place is not known.
Her husband was Guillaume de Béthune. They were married, but the date and place have not been found. Their two known children were Mathilde (c1220-1289) and Gilles (?-?).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1205 |
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| Death | AFT 1278 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | dame de Pontrohart et de Roesbrugge |