- Born on June 18, 1716 in Bourg-des-Comptes, at château du Boschet
- Baptized the same day in this municipality
Parents
- Eugène-Armand de Lescoët ( - 1728), chevalier, vicomte du Boschet
- Marie-Thérèse d'Ernothon (aft. 1676 - 1749)
Family
- Married on March 1, 1731 in Rennes, with Joseph-Luc de Kernezne (1692 - 1736), chevalier, marquis de La Roche et de Coëtarmoal