A chemist. With Marcellin Berthelot he wrote, in 1862–1863, three papers in which the notions of a limited reaction and of chemical equilibrium appear for the first time. He died of tuberculosis in Cannes, aged thirty-one; his daughter Hélène would marry Denys Cochin.
Owner of Beauvoir. Ancestor no. 18 of Augustin Cochin, on his father’s side, in the Pierfit collaborative tree on Geneanet.
The man8rove collaborative database gives him as “Léon Péan de Saint-Gilles (1832 - 1863), propriétaire”.
Brothers and sisters, according to the Pierfit tree: Marthe (1829 – 1902).
- Parent of
- Hélène Péan de Saint-Gilles (1857 – 1946)
- Married
- Pauline Thion de La Chaume, in 1856