Erected in 1575, following a vow made by the city during a long plague, it is surrounded on three sides by Ghibelline battlements and leaning against the remains of the 1292 walls of James of Aragon. It belonged to a confraternity of sailors of the Merchant Navy. The church has a single nave with a semicircular apse covered by a small dome, according to a widespread Renaissance typology. Externally, it is characterised by an original medieval architectural style, given the characteristic swallow-tailed battlements that crown it.