Jean Baptiste Costy
- Born circa 1724
- Deceased on May 22, 1789 in Bréançon, at the approximate age of 64 years
Parents
- Charles Costy (c. 1689 - 1739)
- Françoise Charlotte Guérin (c. 1690 - 1775)
Family
- Married on July 7, 1749 in Bréançon, with Marie Anne Fromont (1728 - ), issuing
Marie Geneviève (1757 - 1806)