- Born on January 1, 1880 at château de Lalande
- Deceased on October 16, 1961 in Paris, at the age of 81 years
Parents
- Joseph de Beaurepaire de Louvagny (1842 - 1932), chef de bataillon au 16´ régiment d'Infanterie
- Marie-Alix de La Celle (1853 - 1938), marquise de Lalande