At that time it was known as Miliarum. An area of Campania Felix at the foot of Casa Hirta, in the plain, where the bishop Vitaliano of Capua chose to take refuge as a hermit in the 8th century.


There, in the district of Casola of the actual Caserta, an hermitage arose, which soon became a reference for numerous miracles attributed to the religious, already in the odor of sanctity. It was the future Saint who built the complex which would take his name. A narrow space, delimited by stone walls, still reachable today through a path along which you can see various chapels dedicated to the founder.
The church is a central and fundamental element, with a rectangular plan, made up of a large presbytery and a choir where, in a niche in the wall, a statue of the Saint is placed. Inside the sacred building, there is a small chapel whose stucco altar is surmounted by an image of the Madonna of the Rosary. Outside, there is a portico with three arches of which the central one leads into the entrance of the church, while the two side ones lead to the monks’ cells. A bell tower completes the structure, and participates in the overall aesthetic harmony of the hermitage.
Mentioned for the first time in a seal of 1113 in which the archbishop of Capua indicated to the new bishop Rainulfo the churches of his diocese, in 1700 the edifice is mentioned in another document as being in poor conditions and crumbling. It was only in 2001 that the works of restoration were launched, which have restored each element of the architectural complex to its original splendor. the restoration of the church's trussed roof, the elimination of all ornamental overlaps and the recovery of the walls are of particular value.