In 1881 Leroy-Beaulieu was elected professor of contemporary history and eastern affairs at the Ecole Libre des Sciences Politiques, becoming director of this institution on the death of Albert Sorel in 1906, and in 1887 he became a member of the Academic des Sciences Morales et Politiques.
Duquesne, Vie et aventures galantes de la belle Sorel (1909).
This defect appears most strongly in his treatment of Joan of Arc; and the attack on Agnes Sorel seems to have been dictated by the dauphin (afterwards Louis XI.), then a refugee in Burgundy, of whom he was afterwards to become a severe critic. He was not, however, misled, as his more picturesque predecessor Froissart had been, by feudal and chivalric tradition into misconception of the radical injustice of the English cause in France; and except in isolated instances where Burgundian interests were at stake, he did full justice to the patriotism of Frenchmen.