Xavier de Costart
- Born on March 20, 1889 in Aubry-en-Exmes
- Deceased on December 23, 1957 in Malans, at the age of 68 years
Parents
- Gabriel de Costart (1852 - 1905)
- Henriette de Miscault (1866 - 1937)
Family
- Married on March 13, 1919 in Besançon, with Anne de Jouffroy d'Abbans (1891 - 1986)