Ualgarg Mór Ó Ruairc (died 1346) was King of

West Breifne The Kingdom of West Breifne (Irish: ''Breifne Ua Ruairc'') or Breifne O'Rourke was a historic kingdom of Ireland that existed from 1256 to 1605, located in the area that is now County Leitrim. It took its present boundaries in 1583 when West Br ...

from 1316 until his death in 1346. His long and influential reign ensured that his descendants would rule West Breifne for the rest of its history, 250 years after his death. The rival branches of the O'Rourke sept which emerged in the 15th century – the

Carrigallen Carrigallen () is a small village in County Leitrim, Ireland. It is on the R201 and R203 roads in the east of the county, 19 km west of Cavan town. , the village had a population of 387. The village is in a civil parish of the same name. ...

O'Rourkes,

Dromahair Dromahair () is a village in County Leitrim, Ireland. Dromahair is 10 km (6 mi) from Manorhamilton and 17 km (10 mi) from Sligo town. Geography Dromahair lies in the hilly north west of County Leitrim amid some stunning uns ...

O'Rourkes and Carha O'Rourkes – all trace the lineage back to Ualgarg Mór.The Progeny of Ualgarg Mor
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Family

Ualgarg was the son of Domhnall O’Rourke, Lord of Breifne O'Rourke from 1307 to 1311, and brother to Flaithbheartach O’Rourke, King of Breifne O’Rourke from 1346 to 1349 (deposed 1349, died 1352) and to Cathal 'na-taisech' O'Rourke (d.1329) who was foster-son of

Matha Mág Tighearnán Matha Mág Tighearnán (anglicised Matthew McKiernan) was chief of the McKiernan Clan and Baron or Lord of Tullyhunco barony, County Cavan from 1290 until 1311. Ancestry Matha was the son of Gíolla Íosa 'Leith' Mág Tighearnán, son of Sithr ...

, chief of the

McKiernan Clan The surname McKiernan (), is of Irish origin and is found predominantly in County Cavan where it originated. The Irish name is Mág Tighearnán meaning ''the Son of Tighearnán'' and the clan or sept takes its name from one Tighearnán who lived ...

Tullyhunco Tullyhunco () is a barony in County Cavan, Ireland. It comprises the civil parishes of Kildallan, Killeshandra and Scrabby. Location Tullyhunco is located in western County Cavan. It borders County Leitrim to the west and County Longford to ...

County Cavan County Cavan ( ; ) is a Counties of Ireland, county in Republic of Ireland, Ireland. It is in the Provinces of Ireland, province of Ulster and is part of the Northern and Western Region. It is named after the town of Cavan and is based on the hi ...

References

{{DEFAULTSORT:O Ruairc, Ualgarg Mor 1346 deaths 14th-century Irish monarchs Irish lords People from County Leitrim