The church was erected at the site of a prior church that had been razed by the 1693 earthquake. It is dedicated the St Julian the Hospitaller. The present late-Baroque church was built between 1739 and 1751 using designs by Giuseppe Palazzotto and Vincenzo Caffarelli. The church has an elaborate convex facade. The upper story has windows shielded by a dense iron grate, these windows were used by the cloistered Benedictine nuns of the attached monastery to watch the splendid procession of the day of Sant'Agata as it passed by. The portal has an added shield of a tall metal fence. The facade pediment is broken and each pediment holds a reclining maiden, sculpted by Gaspare Ciriaci. The entrance door have a cross of the Order of the Holy Sepulchre, who restored the church after 1939.