In the medieval village of Poggio Sannita, the Church of Santa Vittoria stands as a central landmark of faith and history. Dedicated to the revered martyr Saint Vittoria, the current building was erected in 1725 after the original medieval church was destroyed in the 1720 earthquake. It was rebuilt by Duke Nicola Petra and consecrated the same year, later expanded in 1762 by his son Giuseppe Maria Petra.
The church features a Latin cross layout with three asymmetrical naves, resting on a rocky base. The interiors, with late Baroque and Neoclassical vaults, host remarkable artworks: the statue of Saint Prospero, patron saint of the village, crafted by Silverio Giovannitto in 1764, and a reliquary containing a bone fragment of the saint, brought from Rome by Cardinal Vincenzo Petra in 1743.
Also noteworthy is the 18th-century organ by the D’Onofrio family, recently restored, as well as the Neapolitan-style marble high altar, the pulpit held up by a symbolic hand, and the 1890 painting of the Last Supper by Montagano. A striking discovery occurred in 2000, when the tomb of Duke Nicola Petra was found beneath the organ, complete with clothing and skeleton.
Among other artistic treasures are a 1795 holy water font with serpent motif, an 18th-century wooden tabernacle, and 19th-century statues of the Immaculate Virgin, Our Lady of Sorrows, and Saint Dominic. A unique sacred site reflecting the spiritual and noble heritage of Poggio Sannita.