Guillaume de Castelnau Tursan
- Born circa 1762
- Deceased on March 23, 1843 in Montgaillard, at the approximate age of 80 years
Parents
- Pierre François de Castelnau-Tursan (1726 - 1809), chevalier, marquis de Montgaillard
- Julie Constance de Beynac (1735 - 1768), dame de Monsecours
Family
- Married with Françoise Clavo (c. 1774 - 1840), issuing
Laure (1819 - )- Marie Louise
Occupations
- officier au régiment du Médoc