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 Confraternity of Bonaria in 1876. Known as the “former Oratory of Bonaria” by the people of Quartaro, it now houses parish activities.
The building has undergone extensive tampering over time, with a major restoration in 1960. 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 barrel-vaulted nave, on either side of which are small chapels: two on the right and one on the left, with a trace of the entrance arch of a fourth, probably demolished when, between the last decades of the 1700s and the early 1800s, the Basilica of St. Helena was modified. A door connects the Oratory with the parish at the level of the first chapel on the left.
