Jeanne was the daughter of Eullart II de Poncques and Agnès du Chastel. The date and place of her birth have not been found.
Her husband was Jean de Saint-Omer. They were married, but the date and place have not been found. Their two known children were Péronne (c1350-?) and Jean (?-1440).
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | vrouwe van Everdinge |