Pierre François Léon de Lonjon
- Born on October 3, 1830 in Mont-de-Marsan
- Deceased on January 23, 1831 in Larrivière-Saint-Savin, in infancy
Parents
- Clément de Lonjon (1785 - 1856), officier aux gardes du corps du Roi
- Marie Léonide Brocqua (1798 - 1857)