Clann Aodha Buidhe  (Irish)
Coat of arms
O'Neill of Clandeboye c. 15th century.
Common languages Irish
Government Monarchy
Brian mac Aodha Buidhe Ó Néill (first)
Brian Ó Néill (last)
Preceded by
Succeeded by
Earldom of Ulster
Kingdom of Ireland
Today part of  United Kingdom of Great Britain and Northern Ireland

Clandeboye (from the Irish Clann Aodha Buí; the family of Hugh with the swarthy appearance), was a kingdom of Gaelic Ireland, associated geographically with present-day south County Antrim and north County Down. The entity was relatively late in appearance and is associated partly with the Gaelic resurgence of the High Middle Ages. The Ó Néill Clann Aodha Buidhe who reigned in the territory descended from Aodh Buidhe Ó Néill, a King of Tír Eoghain. His descendants managed to move east and retrieve territories back from the Normans; the de Burgh's Earldom of Ulster.

The kingdom came to an end in ignominious circumstances in 1574; as the Kingdom of Ireland during the Elizabethan period was strengthening its grip on the island, the New English had begun to create settler-colonies within Ireland. The Ó Néill naturally opposed this and Brian Ó Néill met with the Earl of Essex to discuss matters. Subsequently, Essex had his men massacre up to 500 of the unsuspecting Gaels present; men, women and children; in what is known as the Betrayal of Clannabuidhe. Brian, his wife and brother-in-law were taken away and executed, Clandeboye was subsequently partitioned and later privately colonised under the Plantation of Ulster.


The spelling of the name has varied over the years, and had been written variously as Clandeboye, Claneboye, Clandyboy, Clannaboy, and Clanaboy. Clandeboye has also been adopted as the name of an electoral ward of North Down Borough Council. It has survived as a geographical location in modern times as an area of Bangor, County Down, Northern Ireland.

Kings and Princes of Clandeboye


  • Hugh Buidhe (Hugh the Blond) O'Neill, King of Tír Eóghain (1260 – 1283).


  • Nial More O'Neill, King of Ulster (c. 1440 –)
  • Brian Ballagh II (Bernard the Freckled) O'Neill, Prince of Clanaboy (1524 – 1529)
  • Murkertac O'Neill (c. 1500 – bef 1567)
  • Murkertac O'Neill (c. 1530 –)
  • Donal O'Neill (c. 1560 –)
  • Conn Boy O'Neill (c. 1590 – c. 1630)
  • Ever O'Neill (c. 1625 – bef 1689)


The Border Chieftains of Ulster

See also


Oxford Concise Companion to Irish Literature, Robert Welsh, 1996. ISBN 0-19-280080-9

Coordinates: 54°38′31″N 5°43′01″W / 54.642°N 5.717°W / 54.642; -5.717

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