- Born on February 12, 1792 in Mainz
- Baptized on June 11, 1792 in Saint-Denis
- Deceased on April 12, 1871 in Us, at the age of 79 years
Parents
- Guy Pierre de Coëtnempren de Kersaint (1747 - 1822), baron de Kersaint, préfet maritime, contre-amiral
- Agathe Françoise Halna du Fretay (1767 - 1835)
Family
- Married in 1826, with Laure Marie du Tremblay de Saint-Yvon ( - 1877)
- Married on November 28, 1826 in Paris, with Louise Marie du Tremblay de Saint-Yon (1805 - 1877), issuing
Occupations
- maître des requêtes
- capitaine du génie
Distinctions
- chevalier de l'ordre de Saint-Louis