Léon Cogniet (29 August 1794 – 20 November 1880) was a French history and portrait painter.After failing an attempt to win the Prix de Rome in 1816, he won the following year with his depiction of Helen Rescued by Castor and Pollux[1] and received a stipend to study at the French Academy in Rome until 1822.In 1827, he created a series of murals on the life of Saint Stephen for the church of Saint-Nicholas-des-Champs.Between 1840 and 1860, he operated a popular painting workshop for women, directed by his sister Marie Amélie and one of his students, Catherine Caroline Thévenin (1813–1892), who later became his wife.In 1851, he was appointed a Professor at the École des Beaux-arts, a position he held until 1863, when he retired, slowly giving up his private students and becoming more reclusive.