No notable changes were made to the church in the 14th century, except for the installation of the relics of Saint Pardus in an altar in the south aisle.

Catalani decorated the church with precious objects, including a statue of San Pardo, which has since been stolen.

In the Baroque period, the floor level was raised, two windows were installed flanking the entrance, and the nave of the church was lengthened.

The transformation of the architectural character of the cathedral, from medieval to Baroque, was carried out under Bishop Giovanni Andrea Tria.

The trussed ceiling was replaced with coffers and stucco ornaments were added to the Gothic vaults in the nave.

The same bishop made some structural modifications to the basilica, extending the two side aisles towards the chancel and moving the altar back.

Restoration work was undertaken to consolidate the structure from 1931, including the campanile, which was destroyed by a lightning strike in 1943.