Niall mac Séamuis Mac Mathghamhna explained

Niall mac Séamuis Mac Mathghamhna, was a 15th-century priest in Ireland:^[1] he was appointed Bishop of Clogher on 14 June 1484, but the papal bulls were not expedited. He died in 1488.

Notes and References

1. "A New History of Ireland" T. W. Moody, F. X. Martin, F.J. Byrne and Cosgrove, A: Oxford, OUP, 1976