- Born on September 14, 1834 in Vesoul
- Deceased on March 9, 1902 in Versailles, at the age of 67 years
Parents
- Alexandre Demont de Lavalette (1798 - 1872), colonel de cavalerie, garde du corps du Roi surnuméraire
- Caroline Fallot de Leuvrecey ( - 1877)
Family
- Married on June 22, 1874 in Niort, with Claire Charlot (1845 - 1917), issuing
Occupations
- colonel de chasseurs à cheval
Distinctions
- commandeur de l'ordre de la Légion d'honneur