The records of Msgr. Alepus’ pastoral visitation of 1553 state that the medieval church was the parish church of the village of Salvennor.
It was rebuilt presumably in the 13th century by the monks of Vallombrosa, who used the same workers as at St. Michael’s.
It has a single apsidal nave with wooden beam roofing.
It has a large sacristy and is flanked by the ruins of some hovels that certainly in the Middle Ages must have been intended for the vigils of the many pilgrims.
The said hovels, according to the testimony of Rector Cossu, must have numbered six, and their construction, as well as the administration of the church’s property, was to be attributed to Priest Gio.
Maria Lisai, rector of Ploaghe in the early eighteenth century.
In 1858, it was noted that the church had a single altar with a wooden statue of the saint, carved and polychromed, representing an old man with a long white beard and a brown face that inspired true veneration.