The cathedral Chapter was headed by three dignities (the Dean, the Archdeacon, and the Primicerius), in addition to whom there were eighteen Canons.

[5] In 1479, the diocese recovered by testamentary bequest the fiefs of Poccianello (Pozzianello) and Pozzovetere, which had been illegally seized and held by the Counts of Caserta.

[6] In 1567, Bishop Agapito Bellomo (1554–1594) began the construction of a seminary building for Caserta, in accordance with the decrees of the Council of Trent.

The choice of a site in Casertavecchio was unfortunate, since the bishops did not reside in the town, but in one of their palaces, either at Puccianiello or at Falciano.

[7] In 1597, Bishop Benedetto Mandina (1594–1604) held a diocesan synod, during which he decreed the establishment of a Canon Theologus in the cathedral.

He noted that his predecessor, Bishop Agapito Bellomo had already established the office of Canon Penitentiary, in accordance with the decrees of the Council of Trent.

[11] In 1750, King Charles VII of Naples purchased the entire feudal property of Caserta, which belonged to Count Michelangelo Gaetani.

Pope Pius VII, in the bull "De Utiliori" of 27 June 1818, chose to unite the two dioceses of Calvi and Teano under the leadership of one bishop, aeque principaliter.

[19] In 1832, the new church near the royal palace, built under the patronage of Ferdinand II of the Two Sicilies and intended to be the new cathedral, was consecrated.

It did not become a cathedral, however, until 1841, when, responding to the petition of Bishop Domenico Narni Mancinelli (1832–1848), and with the agreement of Ferdinand II, Pope Gregory XVI authorized the transfer of the episcopal seat from Casertavecchia.

[20] In the papal bull, "Inter Apostolicae", of 15 July 1841, Pope Gregory permanently suppressed the current cathedral in Casertavecchia, and reduced it to the status of a simple parish church.

The bishop was to appoint a parochial vicar, and pay his salary; care of the parishioners was to be in the hands of the Alcantarine fathers.

Bishop Enrico de Rossi therefore began the construction of a newer cathedral, laying the foundation stone on 8 May 1859.

The dioceses formerly members of the suppressed Province of Capua (Gaeta, Calvi and Teano, Caserta, and Sessa Arunca) became suffragans of Naples.