- Born on July 14, 1737 in Peillac
- Deceased on August 26, 1771 in Saint-Vincent-sur-Oust, at the age of 34 years
Parents
- François Mathurin de La Landelle (c. 1688 - 1760), chevalier, seigneur de La Grée, greffier aux États de Bretagne
- Marie Anne Hélo ( - 1759)
Family
- Married on January 16, 1771 in Saint-Vincent-sur-Oust, with Louis-Auguste Thomé de Keridec (1749 - 1785), chevalier, seigneur de Keridec