- Born in 1834 in Saint-Omer
- Deceased on March 6, 1903 in Cannes, at the approximate age of 68 years
Parents
- Amédée Le Sergeant de Monnecove (1794 - 1849), maire de Renty, capitaine de cuirassiers de la garde royale
- Zénobie Clémence du Bosquiel de Bondues (1802 - 1879)
Family
- Married in 1861, with Elisabeth Briet de Rainvillers (1837 - 1895), issuing
- Louis Omer (1865 - )
- Georges Marie Jean Pierre (1867 - 1868)
Cécile (1874 - 1944)