- Born on November 24, 1889 in Coulommiers
- Deceased in 1975, at the approximate age of 85 years
Parents
- Georges Poinçon de La Blanchardière (1844 - 1917), chef de bataillon d'infanterie
- Marie de La Brosse (1854 - 1912)
Family
- Married on January 3, 1927 in Paris, at 6e, with Bernadette de Finance de Clairbois (1892 - 1981), issuing
Private- Private
- Private
Occupations
- historien de l'art
- érudit
- ingénieur agronome
- capitaine
Distinctions
- chevalier de l'ordre de la Légion d'honneur