O'Faelain, Muirecan macDiarmait (?)
M, d. 863
O'Faelain, Muirecan macDiarmait was born in Leinster, Ireland. He was the son of O'Faelain, Diarmait macRuaidri (?) He was King of Leinster. He acceded to the throne in 862. O'Faelain, departed this life in 863 in Leinster, Ireland.