- Born on January 26, 1726 in Valenciennes
- Deceased on June 5, 1805 in Preux-au-Sart, at the age of 79 years
Parents
- Maximilien Albert Joseph de Sars (1701 - 1772), seigneur d'Haveluy, échevin de Valenciennes
- Marie Catherine Ignace de Fourmestraux (c. 1682 - 1764)
Family
- Married on December 26, 1746 in Valenciennes, with Benoît Dominique de Croeser (1689 - 1758), major commandant la place de Valenciennes, issuing
Jean-Baptiste (1757 - 1845)