- Category : 1880-births
- Type : R
- Profile : 1/3 - Investigating / Martyr
- Definition : None
- Incarnation Cross : RAX The Four Ways 2
French historian, art critic, writer and journalist.
He won the Prix Goncourt in 1909 for the novel "En France," which he co-wrote with his cousin Georges Athenas under the pseudonym Marius-Ary Leblond.
He died in Paris on 7 April 1958.