This see continues the old Diocese of Elne,[3] which was renamed and had its see relocated at Perpignan, in 1601 after a papal bull of Pope Clement VIII.

[5] In 1482, by virtue of a Decree of the Council of Trent, Pope Gregory XIII made it a suffragan of the Archdiocese of Tarragona.

The Cathedral of Elne (eleventh century) and the adjoining cloister are rich examples of elaborate medieval ornamentation.

In the later Middle Ages, and under the influence of Roman Law, Roussillon witnessed revivals of slavery; this is proved by numerous purchase deeds of Muslim and Christian slaves, dating back to the fourteenth and fifteenth centuries.

The council held in 1027 decreed that no one should attack his enemy from Saturday at nine o'clock to Monday at one; and that Holy Mass be said for the excommunicated for a space of three months, to obtain their conversion.

The author of l'Art de verifier les Dates wrongly maintains that the Council of Elvira was held at Elne.