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From Wikipedia, the free encyclopedia


8th century–1576
Map of Umaill (dark green) within County Mayo.
Map of Umaill (dark green) within County Mayo.
StatusTúatha of Connacht (until 1235)
Common languagesMiddle Irish, Early Modern Irish, Latin
Catholic Christianity
Gaelic tradition
• -773
• 1580–1603
Gráinne Ní Mháille
• Established
8th century
• Disestablished
ISO 3166 codeIE
Preceded by
Succeeded by
Mac William Íochtar Arms of the House of de Burgh.svg
Kingdom of Ireland Arms of Ireland (historical).svg
Today part of Ireland

Umaill was a territory located in the west of what is now County Mayo, Ireland. It comprises the baronies of Burrishoole and Murrisk, essentially all the land adjacent to Clew Bay.

The territory was autonomous within the Kingdom of Ireland until 1576, when its Queen Grace O'Malley agreed to the surrender and regrant policy, whereby she would agree to accept English inheritance law, and in return would be given her land back with a new set of official title deeds. On her death the lands were inherited by her son Tibbot "ne Long".


Knox says of Murrisk "With Burrishoole it forms the kingdom of Aicill and Umall, which comes into history at the battle of Moy Lena. Aicill seems to be a descriptive term applied to mountainous country. Umall means low, and applies in this sense to the country lying east of Clew Bay, as Aicill applies to the parts lying north and south of the bay. The title may be translated as King of Highland and Lowland. Aicill survives in Achill Island and Curraun peninsula. The term was applied to the country between Clew Bay and the Killeries in the thirteenth century. Though at all times an independent kingdom acknowledging supremacy of only the King of Connacht, it was too small to play an independent part, and therefore is rarely mentioned in the annals." (p. 303).


The Gaelic culture and Irish language continued on in the area longer than most other parts of Ireland. Today, Acaill and An Corrán are part of the Mayo Gaeltacht.

Kings of Umaill

Its earliest rulers were the semi-historical Tuath mhac nUmhoir. The Umaill, its early historical rulers, were renamed the Uí Briúin Umaill to claim a fictitious relationship with the Uí Briúin. By the 12th century the ruling family adopted the surname Ó Máille, and were reckoned with the Ó Dubhda, Ó Flaithbheartaigh and Mac Conraoi as supreme seafaring clans of Connacht.

Annalistic references

  • 807.A slaughter was made of the foreigners [i.e. Vikings] by the men of Umhall.
  • 808.A battle between the men of Umhall and the foreigners, in which the men of Umhall were slaughtered, and Cosgrach, son of Flannabhrat, and Dunadhach, lord of Umhall, were slain.
  • 848. Loch Laeigh, in the territory of Umhall, in Connaught, migrated.
  • U913.6. Niall son of Aed led an expedition to Connacht and inflicted a battle-rout on the warriors of the north of Connacht, i.e. on the Uí Amalgada and the men of Umall, and they left behind a very large number either dead or captured, including Mael Cluiche son of Conchobor.
  • M1002.10 - Conchobhar, son of Maelseachlainn, lord of Corca-Modhruadh; and Aicher Ua Traighthech, with many others, were slain by the men of Umhall.
  • M1219.6. Duvdara, the son of Murray O'Malley, was put to death for his crimes by Cathal Crovderg O'Conor, while in fetters in O'Conor's fortress.
  • 1415. A great prey was taken by O'Malley, i.e. Hugh, from Dermot O'Malley. Dermot in retaliation took O'Malley's Island, upon which Hugh went in pursuit of Dermot; and a battle was fought between them, in which Hugh O'Malley, Lord of Umallia, was slain by Dermot and his son Conor, and also the son of Thomas O'Malley, and Donnell, the son of Dermot O'Malley. The chieftainship of Umallia was thenceforth wrested from the descendants of Hugh; and Dermot assumed the lordship.
  • 1417. Rory, the son of Murrough O'Flaherty; Rory, the son of Dermot Duv O'Flaherty, and sixteen others of the O'Flahertys, were drowned in the bay of Umallia.

See also


External links

This page was last edited on 8 August 2019, at 20:10
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