- Born on September 10, 1869 at château d'Eth
- Deceased on December 30, 1946 in Paris, at 13e, at the age of 77 years
Parents
- Alfred Merlin d'Estreux de Beaugrenier (1832 - 1906), écuyer
- Jenny Gando (1839 - 1916)
Family
- Married on July 27, 1896 in Paris, with Marie de Pechpeyrou-Comminges de Guitaut (1872 - 1957), issuing
- Hubert (1897 - 1958)
Magdeleine (1899 - 1990)- Monique (1902 - 1978)
- Emmanuel (1906 - 1965)
- Marguerite (1910 - 1999)
- Gérard (1913 - 1998)