In 1852, the dioceses of Isernia and Venafro were united under the governance of one and the same bishop, aeque personaliter.
[4] On 27 June 1818, Pius VII issued the bull De Ulteriore, in which he reestablished the metropolitan archbishopric of Capua, and assigned as suffragan (subordinate) dioceses: Isernia, Calvi, Suessa, and Caserta.
[5] On 18 June 1852, in the bull "Sollicitudinem Animarum", Pope Pius IX the arrangement was changed.
[6] On 30 September 1986, Pope John Paul II ordered that the dioceses of Isernia and Venafro be merged into full union as one diocese with one bishop, with the Latin title Dioecesis Aeserniensis-Venafrensis.
There was to be only one diocesan Tribunal, in Isernia, and likewise one seminary, one College of Consultors, and one Priests' Council.