- Born on February 3, 1881 in Paris
- Deceased on February 4, 1940 in Landerneau, at the age of 58 years
Parents
- Eugène Nielly (1853 - 1925), baron Nielly, inspecteur général de l'assistance publique, journaliste
- Constance Mallebay d'Échérac (1858 - 1927)
Family
- Married on February 5, 1906 in Landerneau, with Anne de Rodellec du Porzic (1882 - 1978), issuing
- Pierre (1907 - 2002)
Occupations
- propriétaire