Mathias of Inis Ní was a Medieval Irish saint.
Biography
Inis Ní (Inishnee Island) is located in Bertraghboy Bay in Connemara, Ireland, and contains the remains of a chapel and well dedicated to Mathias,"Lúb Inis Ní", All Trails the probable founder of the Christian settlement on the island. The chapel is surrounded by a rectangular graveyard, with an altar to the north-east containing an upright cross-inscribed slab.
See also Macdara Scaithin Malachy Ó Caollaidhe Seven Sisters of Renvyle
References
A Guide to Connemara's Early Christian Sites, Anthony Previté, Oughterard, 2008.