François Xavier Demangeat
- Born on October 24, 1826 in Riaillé
- Deceased on April 4, 1869 in Nort-sur-Erdre, at the age of 42 years
Parents
- François Xavier Demangeat (1797 - 1868), directeur des forges de la Provostière
- Blanche Marie Henriette Lefoulon (1804 - )