 Initially constructed in Gothic style, the building was battered by Naple's frequent earthquakes but also suffered gravely from an explosion originating from Castel Sant'Elmo on December 13, 1587.This last episode prompted reconstruction in 1596-1599, as announced in a cornice inscription, leading to the facade we see today, designed by Agnolo Franco Typical of Franciscan churches, the facade has a sober and simple restraint, accessed through a staircase and balustrade.The church nave ceiling is decorated with 46 gilt-framed "cassetone", or rectangular fresco panels, completed in 1598-1600.