- Born on October 8, 1734 in Ernée
- Deceased on May 1, 1780, at the age of 45 years
Parents
- Jean-René Le Mercerel (1699 - 1738), écuyer, seigneur de La Haie-sur-Colmont, officier au Régiment de Royal-Comtois
- Marie-Thérèse du Rocher (1709 - 1741)
Family
- Married with Françoise-Émilie de Poulpiquet de Coatles (1748 - )