The former French Roman Catholic Diocese of Saint-Papoul, now a Latin titular see, was created by Pope John XXII in 1317 and existed until the Napoleonic Concordat of 1811. The seat of the diocese was at Saint-Papoul, in south-west France, in the modern department of Aude; it was some distance northeast of the main highway between Carcassonne and Toulouse, where there was already a Benedictine monastery, founded in the eighth century and dedicated to Saint Papoul. The bishop of Saint-Papoul was suffragan of the Archbishop of Toulouse.