The campaign to canonize Joan was launched by Félix Dupanloup, Bishop of Orléans, in 1869. After decades of delay (and an initial rejection by the papal consistory), it was Pope Pius X who pushed her cause through (Leo XIII having signed the Commissio Introductionis Causæ Servæ Dei Joannæ d'Arc in 1894). Pope Benedict XV oversaw her canonization on May 16, 1920.