[1] On 2 February 1969, the region experienced an earthquake resulting in damage to buildings on the hilltop, including the church.

[1] The church is located on an isolated hilltop, implanted on the steep slopes below the Castle of Mértola, but dominating the northern aspect of the town, on terraces above the Guadiana River.

[1] Attached to the middle axis of the facade, is a three-storey buttress of differing molding that ends in a conical pinnacle.

To its right, in decentered position, is a rectangular portico framed by low relief and colonnades, surmounted by molded oculus.

[1] A rounded archway/niche on columns into the eastern wall, framing the niche-shaped mihrab, with polylobal, stucco blind arches and the nimbar.