Bovevagh parish church was established in the late Middle Ages on the site of an early monastery, said to have been founded by Colm Cille in 557. Adamnan, Coolm Cille's biographer was reputedly patron here and the monastery was the home of SS. Ringan and Aidan, son of Fintan. There was briefly a timber church (dertech) on the site in the 11th century. The oratory was burned in 1100. There were erenaghs until the early 17th century. The parish church was in use up to the 19th century. Like Banagher, there is a mortuary house, built to house the remains of a saint. Of rubble construction with a stone-slab roof, it is in a somewhat decayed state.