It was replaced in 1399 by one built by Fergal O Duigenan which was burned down in 1340 and replaced three years later, one gable of which stands today. This gable is a memorial to the Gaelic Literary tradition from the 13th to the 18th century as represented by the O Duigenans, Hereditary Erenachs of Kilronan. Kilronan Abbey is located on the road between Ballyfarnon and Keadue near Lough Meelagh, the lake of the marsh and it is said on its island that both St. Ronan and St. Lasair were laid to rest. On the roadside close to the lake shore is Lasair Well. St. Ronan s Altar and the hollowed stone in the stream his water font.
Local tradition claims the well and surrounding clay has curative powers.
It is still a place of religious pilgrimage and Mass is celebrated here each year on the first Sunday in September. Duigenan is the Anglicized form of O Duibhgeannain, which may come from Black Gennan . In Irish records O means family of. Gennan , then takes the genitive form, and becomes Gennain . The family appears to have devoted itself to literature, and to have been, from remote times, Ollamhs, i.e. professors in History and Genealogy.