From the magnificent hamlet of the oldest city, the original Casa Hirta, secure in the hills for seven centuries, before becoming Caserta Vecchia, supplanted in its main functions and abandoned by the vast majority of the inhabitants in favour of the new Caserta, corresponding to the current capital, developed in the plain below.
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.