His next work, Toloza, an epic poem about the invasion of the Albigenses by Simon de Montfort, came in 1882, to further acclaim.
At the beginning of his pontificate, he focused on the Albigenses, also known as the Cathars, a sect that had become widespread in southernwestern France, then under the control of local princes, such as the Counts of Toulouse.
St. Peter of Castelnau, the Cistercian inquisitor martyred by the Albigenses in 1208, St. Camelia, put to death by the same sectarians, and St. John Francis Regis (1597-1640), the Jesuit, born at Fontcouverte in the Diocese of Narbonne, are specially venerated in the Diocese of Carcassonne.