chiesa di Maria Santissima Assunta (Mother Church of Erice)

Early Christian Tradition
According to local tradition, Christian worship in Erice began in the 4th century AD, during the reign of Emperor Constantine, when the population gradually adopted Christianity. This coincided with the closure, and possibly the destruction, of the ancient Temple of Venus Erycina a major pagan sanctuary that had long stood at the summit of Mount Erice. Dedicated to Venus Erycina, the Roman adaptation of the Greek goddess Aphrodite, the temple was one of the most important centres of worship in the ancient Mediterranean world, attracting pilgrims from across the region.
Some sources suggest that two early churches were established: one, Our Lady of the Snow (Nostra Signora della Neve), constructed within the former temple complex itself; the other, also dedicated to Mary, built further west to serve members of the community who were reluctant to worship at the old pagan sanctuary. The ruins of Our Lady of the Snow are still visible today in the courtyard of the Castle of Venus.

Gothic Foundation and Aragonese Patronage (14th century)
According to local tradition, during the War of the Sicilian Vespers King Frederick III stayed in Erice (1314) and, on returning to Palermo, resolved to thank the town by enlarging its main church.
Work on the present church began in 1314, using stone taken from the ancient Temple of Venus Erycina. Nine Greek marble crosses—traditionally linked to the temple—are set into the church's south exterior wall; they were affixed there in 1685.
Building progressed slowly. In 1329 Pope John XXII granted indulgences to those who contributed to the church's completion (ad fabricam manus porrexerint adiutrices), confirming that work was still underway at that date. The project is generally held to have reached completion…

The church has a three-aisled basilican plan with a double transept (one immediately inside the entrance and one before the presbytery). The 19th-century reconstruction was directed by Fra Francesco La Rocca; the design is associated with the circle of Federico Travaglini.

Façade
Built in the Chiaramontan Gothic idiom, the church has a gabled façade with Ghibelline battlements. The main portal, dating to the 14th century, is framed by a double saw-tooth (seghettata) arch; above it is a Gothic-style rose window installed in the 1950s, flanked by two small oculi.
On the north side the elevation resembles a civil building incorporated into the church's perimeter. A Catalan-style portal with diamond-point rustication is surmounted by a refined window and flag-holders, while to the south (along Via Chiaramonte) an earlier ogival portal survives. During the tenure of Archpriest Vito Carvini (late 17th century), nine stone crosses—traditionally from the Temple of Venus Erycina—were set into this south wall; they are recorded as having been affixed in 1685.
Two external features define the monumentality of the complex: the freestanding bell tower and the portico.

Bell tower
The bell tower (28 m high) stands on a raised platform and is divided into three levels: the ground floor has single-light (monofore) openings and the upper storeys feature decorated double-light (bifore) windows. Rebuilt at the end of the 13th century under King Frederick III, it incorporates a more ancient sighting tower traditionally dated to the era of the Punic wars. A staircase of 108 steps leads to the summit with panoramic views of Erice and its surroundings.

Portico and staircase
The small portico known as the "Gibbena" (traditionally glossed from Latin age bene), built in 1426 by Archpriest…

Within the former sacristy, the church houses a small museum display (part of the diocesan “MEMS – Museo di Erice, La Montagna del Signore”) that presents sacred artworks from the Chiesa Madre and other Erice churches, including silverware, chalices, candlesticks, textiles and other liturgical objects. A diocesan notice describes the “Tesoro della Chiesa Madre di Erice” as a curated selection of works of sacred art; around seventy pieces were selected by the art historian Maurizio Vitella when the display was set up. The collection includes metalwork and textiles of the 15th–18th centuries and is documented in scholarly literature.