Jean was the son of unknown parents. The date and place of his birth have not been found.
His wife was Marie de Molembaix. They were married, but the date and place have not been found. Their only known child was Jean III (V) Antoine (1369-1449).
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | seigneur de Roubaix et de Herzelles | |||||
| Nobility Title | baron de Laer |