- Born on August 6, 1684 in Tournai
Parents
- François Obert (1634 - 1695), seigneur d'Hoogstract, président à mortier au parlement de Flandre
- Marie de Landas (1647 - 1695)
Family
- Married on March 11, 1706, with Marie de Gruson (1688 - 1759), issuing
- Henri (1717 - 1754)