Roman Catholic Diocese of Guardialfiera

The diocese was established in the second half of the 11th century, with seat of the diocese was located in the city of Guardialfiera in the Province of Campobasso in the region of Molise.

[1] The diocese is first named in the confirmation of the privileges of the archbishops of Benevento made by Pope Anastasius IV on 22 September 1153, in which the suffragans of the metropolitan are listed.

Since the French occupation had seen the abolition of many Church institutions in the Kingdom, as well as the confiscation of much Church property and resources, it was imperative that Pope Pius VII and King Ferdinand IV reach agreement on restoration and restitution.

[4] On 27 June 1818, Pius VII issued the bull De Ulteriore, in which the ecclesiastical province of Benevento was restored, including it suffragans, among them the diocese of Termoli.

On 28 April 1969, Pope Paul VI announced a large number of appointments, including that of a titular bishop of Guardialfiera, Bishop Ramón Sanahuja y Marcé.