Jean was the son of unknown parents. The date and place of his birth have not been found.
His wife was Isabelle de Montigny. They were married, but the date and place have not been found. Their only known child was Raoul II (c1380-?).
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | seigneur de Magnelay |