Gille Na Naomh M'Arthur O'Bruin explained

Gille Na Naomh M'Arthur O'Bruin (died 1234)^[1] was an Irish priest (of Archdeacon of Roscommon) in the 13th century.^[2]

Notes and References

1. "Fasti Ecclesiae Hibernicae: The succession of the prelates Volume 4" Cotton, H. p132 Dublin, Hodges & Smith, 1848–1878
2. “A New History of Ireland” T. W. Moody, F. X. Martin, F.J. Byrne and Cosgrove, A: Oxford, OUP, 1976