- Born on November 24, 1748 in Paris
- Deceased on October 4, 1772 in this municipality, at the age of 23 years
Parents
- Charles Léonard de Baylenx-Poyanne (1718 - 1781), marquis de Poyanne, grand bailli de Touraine
- Charlotte Louise du Bois de Fiennes (1726 - 1761), marquise de Givry
Family
- Married on February 17, 1767 in Paris, with Maximilien Alexis de Béthune-Sully (1750 - 1776), issuing
- Maximilienne (1772 - 1833)