- Born on October 24, 1748 in Guitté, at château de Couëllan
- Deceased circa 1788, at the approximate age of 39 years
Parents
- René-Célestin de Saint-Pern (1716 - 1795), chevalier, marquis de Saint-Pern, lieutenant d'infanterie au régiment du Roi
- Marie L'Ollivier de Saint-Maur (1725 - 1794)