Originally called Pieve di S. Maria d'Acqui, this church was built of local stone in a Pisan-Lucchese style. It also once featured a central nave and two smaller side aisles which ended in three apses and three altars; the facade has a rosette while the roof overhangs to form a pronaos (a sort of porticoed entry) and there is a very slender bell tower which rises on the right.