The monastery complex of St. Augustine was built in 1441 by the Augustinian Fathers. Attached to the convent there was also a church that in 1750 Luigi Vanvitelli would revive with a remarkable remake using part of the precious materials of the Royal Palace of Caserta. The church of S. Agostino became the Parish of S. Sebastiano after the fire of the church of the patron saint of Caserta.
The church has a single nave, with a pronaos and shallow side niches. In one of the niches there is the statue of St. Sebastian, a wooden work sculpted in 1992 by the sculptor Paul Morder Doss from Ortisei. Characteristics are the so-called "jealousies" located in the presbytery and in the side parts. From them the cloistered nuns of the adjoining convent followed the religious services.
