- Born on February 24, 1816 in Hornoy-le-Bourg, at château d'Hornoy
- Deceased on March 20, 1901 in Paris, at 7e, at the age of 85 years
Parents
- Victor de Dompierre d'Hornoy (1776 - 1845)
- Adèle de Fayet (1786 - 1826)
Family
- Married on May 17, 1859 in Paris, with Jeanne-Cécile de Bastard-Saint-Denis (1845 - 1879), issuing
Charlotte Jeanne (1860 - )- Charles (1861 - 1944)
Occupations
- ministre de la Marine et des Colonies (1873 - 1874)
- vice-amiral (1871 - )
- sénateur de la Somme
Distinctions
- grand officier de l'ordre de la Légion d'honneur (1869)
- ordre de Saint-Stanislas (1865)