- Born on July 20, 1877 in Soustons
- Killed on August 28, 1914, at the age of 37 years
Parents
- Léon de Saint-Martin Lacaze (1846 - ), propriétaire rentier
- Madeleine Moreau de Gournay
Family
- Married on May 20, 1905 in Bordeaux, with Théonie de Guyonnet (1879 - 1958), without issue.