- Born on March 12, 1731
Parents
- Pierre de Bancalis de Pruynes (1691 - 1757), baron de Pruynes, page de la grande écurie du Roi
- Anne de Maurel d'Aragon (1692 - 1762)
Family
- Married on November 24, 1755, with Marie Jeanne Delagnes
Occupations
- officier de dragons