[6] Ecclesiastically, Pesto becomes associated with Capaccio by 967, when Pope John XIII wrote to "reverendissimo confratri nostro, Petro Paestano Episcopo, quae Caput-aquis dicitur.
The right of the king to nominate the candidate for a vacant bishopric was recognized, as in the Concordat of 1741, subject to papal confirmation (preconisation).
[16] On 27 June 1818, Pius VII issued the bull De Ulteriore, in which he reestablished the metropolitan archbishopric of Salerno, with five suffragan dioceses, including Capaccio.
[17] The diocese, as it had grown over the centuries, had become extremely large in geographical extent, and, as the population grew as well, it became much more difficult to administer.
[18] Discussions on dividing the diocese had already begun in the reign of Pope Gregory XVI,[19] division of assets and relocation of facilities being of prime consideration.
[21] By April 1850, however, Pius IX was back in Rome, and by 1853 general agreement had been reached with Ferdinand II of the Two Sicilies and with representatives of the communities in the diocese of Capaccio.
On 16 July 1853, Pius IX signed the bull "Cum propter justitiae dilectionem," establishing the diocese of "Caputaquensis et Vallensis" (Capaccio e Vallo).