Hyacinthe du Pontavice de Heussey
Hyacinthe François Henri Anthony Jules
- Born on December 7, 1845 in Locmaria-Berrien
- Deceased on February 14, 1850 in Tréguier, at the age of 4 years
Parents
- Hyacinthe du Pontavice de Heussey (1814 - 1876), commandant de la Garde nationale de Tréguier
- Harriett Romer (1824 - 1897)