The French reformer and Umanist, scholar, educator and poet and theologian JEAN CHARLIER DE GERSON (1363-1429), portrait engraved in 1712 by L. Suruque from original portait by painter B. Picart. Gerson was the Chancellor of the University of Paris, a guiding light of the conciliar movement and one of the most prominent theologians at the Council of Constance