- Born on May 20, 1849 in Caen
- Deceased in February 1921 in Le Hommet-d'Arthenay, at the age of 71 years
Parents
- Louis Le Forestier d'Osseville, alias le Comte d'Osseville, maire de Caen
- Marie Charlotte Armelle de Sesmaisons (1814 - )
Family
- Married on May 18, 1876 in Lagny-le-Sec, with Yvonne Prévost de Longpérier Grimoard (1854 - 1883), issuing
Thérèse (1878 - 1918)