The most important country church located in the territory of Ovodda is the one dedicated to St. Peter the Apostle, which stands about five kilometers from the village, where the medieval village of Oleri once stood, abandoned after the plague of 1398-1403. Its structure appears to have a simple hall plan and is built entirely of local granite stone with a central portal, over which a circular window opens, while inside it has a single nave. The church of San Pietro is attested for the first time in a document dated 1473, the year in which Leonardo de Alagòn, Marquis of Oristano, in order to settle a dispute concerning the exploitation of land and the consequent taxes to be paid to the Feudatory, divides the territories that once belonged to the Villa of Oleri between the towns of Gavoi and Ovodda, which from that moment on would make a perpetual commitment to maintain the decorum of the church and honor the saint every year, with a feast lasting two days (June 28 and 29); commitment later kept only by the inhabitants of Ovodda. The church, which was in a poor state of preservation in the 1700s, was almost totally restored between 1843-45 and underwent another massive restoration in the 1970s. It is therefore difficult to read the characteristics of the original installation. Currently, the festival, which is the most heartfelt and participated in by the people of Ovodda, is organized annually in turn by the different wards of the village (committees).
