Arles (Arle in Provençal) is a city in the south of France, in the Bouches-du-Rhône département, of which it is a sous-préfecture, in the former province of Provence.
Arles is an ancient town, having been established by the Greeks as early as the 6th century BC under the name of Theline.
Arles was badly affected by the invasion of Provence by the Muslim Saracens and the Franks, who took control of the region in the 6th century.
An important council was held in 813, at the instigation of Charlemagne, for the correction of abuses and the reestablishment of ecclesiastical discipline.
In 1236 a council held under the presidency of Jean Baussan, Archbishop of Arles, issued twenty-four canons, mostly against the prevalent Albigensian heresy, and for the observance of the decrees of the Lateran Council of 1215 and that of Toulouse in 1229.
In 1260 a council held by Florentin, Archbishop of Arles, decreed that confirmation must be received fasting, and that on Sundays and feast days the religious should not open their churches to the faithful, nor preach at the hour of the parish Mass.