Donnchadh Conallagh Ua Conchobair (died 1204) was a Prince of

Connacht Connacht or Connaught ( ; or ), is the smallest of the four provinces of Ireland, situated in the west of Ireland. Until the ninth century it consisted of several independent major Gaelic kingdoms (Uí Fiachrach, Uí Briúin, Uí Maine, C ...

, Ireland. Donnchadh was one of the seven sons of King

Conchobar Maenmaige Ua Conchobair Conchobar Maenmaige Ua Conchobair, son of High King of Ireland Ruaidrí Ua Conchobair, was King of Connacht from 1183 to 1189. He was a military commander and opponent of the Norman invasion of Ireland. Early life Conchobar Maenmaige took his ...

of Connacht (assassinated 1189). He was a grandson of

King of Ireland Monarchical systems of government have existed in Ireland from ancient times. This continued in all of Ireland until 1949, when the Republic of Ireland Act removed most of Ireland's residual ties to the British monarch. Northern Ireland, as p ...

Ruaidrí Ua Conchobair Ruaidrí mac Tairrdelbach Ua Conchobair (Modern Irish: Ruairí Ó Conchúir; anglicised as Rory O'Conor) ( – 2 December 1198) was King of Connacht from 1156 to 1186, and High King of Ireland from 1166 to 1198. He was the last High King of Ire ...

. The ''

Annals of the Four Masters The ''Annals of the Kingdom of Ireland'' () or the ''Annals of the Four Masters'' () are chronicles of Middle Ages, medieval Irish history. The entries span from the Genesis flood narrative, Deluge, dated as 2,242 Anno Mundi, years after crea ...

'', ''sub anno'' 1207, state that "Egneghan O'Donnell set out upon a predatory excursion into Fermanagh, and seized upon cows; but a considerable muster of the men of Fermanagh pursued him, and slew O'Donnell, Lord of Tirconnell, tower of the warlike prowess and hospitality of the province in his time; and some others of his nobility were slain along with him. The following were the nobles who fell on this occasion: Gillareagh, the son of Kellagh O'Boyle; Donough Conallagh, the son of Conor Moinmoy; and Mahon, the son of Donnell Midheach (i.e. the Meathian) O'Conor. Many other heroes fell besides these."

Sources

Annals of Ulster
*O'Byrne, Emmet. ''War, Politics and the Irish of Lenister 1156-1606'', 2004. 1207 deaths Medieval Gaels from Ireland 13th-century Irish people Nobility from County Galway Donnchadh Year of birth unknown {{Ireland-royal-stub