Murchadh mac Maenach

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Murchadh mac Maenach (died 896) was King of Maigh Seóla.


Murchadh is one of the earliest attested kings of his region. He is noteworthy as the person who gave his name to the Muintir Murchada, a dynasty whose leading family later took the surname Ó Flaithbertaigh (O'Flaherty). At this point in time, his people lived east of Lough Corrib, their territory centered on Lough Cime (Lough Hackett), Tuam, County Galway. They would be expelled by the O'Connors in the 1050s.

The genealogies list two sons, Urchadh and Urumhain, with Urchadh listed as having descendants. A Cleirchin mac Murchadh of Uí Briúin Seóla is listed in the Annals of the Four Masters under 908, though he does not appear in any other source. Urchadh later became the grandfather of Brian Boru. Murchadh was also a descendant of Brion macEchach Muigmedoin King of Connacht" who was son of Eochaid Muigh Meadhoin mac Muiredach 122nd High king of Ireland who fathered the UiNeill dynasty and Brion's famous half brother Niall of the Nine Hostages.

According to the genealogies, Murchard's great-great-great-great grandson was Flaithbheartaigh mac Emhin, whose grandson, Muredach Mór Ua Flaithbheartaigh, apparently became the first to bear the surname. Muredach Mór had three sons - Ruaidri of Lough Cime, Donough Aluinn and Aedh. From Ruaidri are the senior lines of the clan (those of Conmaicne Mara (latter known as Connemara), Moycullen and Sliocht Diarmaid)

Preceded by
Maelan mac Cathmogha
King of Maigh Seóla
Succeeded by
Cléirchén mac Murchadh

See also[edit]


  • Annals of Ulster at CELT: Corpus of Electronic Texts at University College Cork
  • Annals of Tigernach at CELT: Corpus of Electronic Texts at University College Cork
  • Revised edition of McCarthy's synchronisms at Trinity College Dublin.
  • Byrne, Francis John (2001), Irish Kings and High-Kings, Dublin: Four Courts Press, ISBN 978-1-85182-196-9
  • Lysaght, Eamonn (1978), The Surnames of Ireland. ISBN 0-7165-2278-0.