Isabelle was born after 1237, the daughter of unknown parents. The place is not known.
Her husband was Hugues IV de Rethel, who she married on BEF 8 OCT 1275. The place has not been found. Their only known child was Jeanne (<1277->1328).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | AFT 1237 |
|
Note 1
dau.of Cte Henri V de Grandpré and Isabeau de Brienne