Jean Marie Joseph Auguste Costentin
- Born on March 12, 1851 in Saint-Martin-de-Landelles
Parents
- Jean Louis Costentin (1817 - 1891), cultivateur
- Victoire Julie Orvain (1828 - 1853)
Family
- Married with Marie Magdelaine Mazier (1856 - ), issuing
- Jean Marie Joseph Renè (1894 - 1917)