Parents
- Jean de Couësplan (1687 - ), écuyer, seigneur de Coëplan
- Françoise-Augustine de Châteautro (1689 - )
Family
- Married on January 24, 1769 in Saint-Maugan, at chapelle du château de Montoray, with Sainte Busnel (1744 - 1784), issuing
Anne-Elisabeth (1770 - 1789)- Rose