- Born on March 17, 1703 in Méry-Corbon
- Baptized on March 20, 1703
- Deceased on April 13, 1780 in Méry-Corbon, at the age of 77 years
Parents
- François Costart (1673 - 1726), seigneur de Méry
- Marie Anne Carrel
Family
- Married on July 8, 1728 in Méry-Corbon, with Marie Anne de Courcy ( - 1734)
- Married on April 27, 1751 in Piseux, at Charnelles, with Marie Françoise de Courcy (1729 - ), issuing
- François Claude (1759 - 1822)