- Born on December 25, 1725 in Plumieux
- Deceased on December 2, 1791 in Saint Helier, at the age of 65 years
Parents
- César de Coëtlogon (1696 - 1742), marquis de Coëtlogon, maître de Camp d'infanterie, procureur général des États de Bretagne
- Catherine Le Borgne (1692 - )
Family
- Married in 1747, with Jacques du Bahuno (1723 - 1798), chevalier, marquis du Liscoët, issuing
François-Louis (c. 1750 - 1825)- Auguste (1764 - 1807)