Gaston de Cousin de Lavallière
- Born on December 15, 1822 in Rabastens
Parents
- Gabriel de Cousin de Lavallière ( - 1836)
- Jeanne Candide Françoise Marguerite de Pins (1788 - )
Family
- Married on May 19, 1851 in Saint-Chinian, with Élisabeth Fourcade (1831 - )