Roman Catholic Diocese of Fossombrone

[4] The martyrologies mention several martyrs: Aquilinus, Geminus, Gelasius, Magnus and Donata, also a bishop, Timothy, and his daughter (4 February), but these persons belong elsewhere,[5] and were not honored in Fossombrone until the late 16th century.

[8] Fossombrone was included in the Donation of Pepin, but remained subject to the Duchy of Spoleto[9] until 1198, when it passed under papal rule.

[10] Pope Victor II (1055–1057) noticed the impoverished state of the diocese of Fossombrone, and gave the bishops the church of S. Giovanni in Sorbitulo with its income.

[12] The diocese was then held in fief of the Holy See by different families: by the house of Este (1210–28), the Malatesta (1340-1445), the Montefeltro of Urbino, 1445-1631); from 1500 to 1503 it acknowledged the rule of Cesare Borgia.

[13] On 4 June 1563, Pope Pius IV signed the bull "Super Universas", by which he elevated the diocese of Urbino to the status of metropolitan archdiocese.

He assigned as suffragan dioceses of the new ecclesiastical province Cagli, Sinigaglia, Pesaro, Fossombrone, Montefeltro, and Gubbio.

Based on the revisions, a set of Normae was issued on 15 November 1984, which was accompanied in the next year, on 3 June 1985, by enabling legislation.