A small building adjacent to St. Helen’s Parish, it was built between 1754 and 1755 and consecrated in 1761 by bishop’s decree; it constituted the cemetery chapel and one of its chapels housed the ossuary. No longer used after the construction of the new cemetery that arose around the Church of San Pietro di Ponte, it was entrusted to the Brotherhood of Bonaria in 1876. Known as the “former Oratory of Bonaria” by the people of Quartaro, it now houses parish activities. The exterior has a Classical finial emphasized by moldings also present in the octagonal, Baroque-style oculus above the simple rectangular door. The interior has a single nave on either side of which are small chapels: two on the right and one on the left, and there is evidence of the entrance arch of a fourth. A door connects the Oratory with the parish at the level of the first chapel on the left.
