- Born on February 14, 1861 in Quimperlé
- Deceased on November 8, 1937, at the age of 76 years
Parents
- Cyprien Hersart de La Villemarqué (1812 - 1889)
- Armande de Cornouaille (1822 - 1891), dame de Kerlez
Family
- Married on October 25, 1899 in Luçon, with Jeanne Marcetteau de Brem (1867 - 1958), issuing
- Guillaume (1900 - 1948)
- Roland Henri Marie Jean (1903 - 1947)
- Patrice (1904 - 1959)
- Hubert (1906 - 1960)