Tir Ollíol was a

túath ''Túath'' (plural ''túatha'') is the Old Irish term for the basic political and jurisdictional unit of Gaelic Ireland. ''Túath'' can refer to both a geographical territory as well the people who lived in that territory. Social structure In ...

in northwest

Ireland Ireland ( ; ga, Éire ; Ulster Scots dialect, Ulster-Scots: ) is an island in the Atlantic Ocean, North Atlantic Ocean, in Northwestern Europe, north-western Europe. It is separated from Great Britain to its east by the North Channel (Grea ...

. It was part of the

confederation A confederation (also known as a confederacy or league) is a union of sovereign groups or states united for purposes of common action. Usually created by a treaty, confederations of states tend to be established for dealing with critical issu ...

of Iochtar Connacht until the late 16th century. Its name is preserved by the

barony Barony may refer to: * Barony, the peerage, office of, or territory held by a baron * Barony, the title and land held in fealty by a feudal baron * Barony (county division), a type of administrative or geographical division in parts of the British ...

of Tirerril in southeast

County Sligo County Sligo ( , gle, Contae Shligigh) is a county in Ireland. It is located in the Border Region and is part of the province of Connacht. Sligo is the administrative capital and largest town in the county. Sligo County Council is the local ...

. It is named after Olliol, one of the sons of

Eochaid Mugmedon Eochaid Mugmedón () was a semi-legendary Irish king. According to medieval Irish legend and historical tradition, Eochaid was a High King of Ireland, best known as the father of Niall of the Nine Hostages and ancestor of the Uí Néill and Conna ...

and half brother of

Niall of the Nine Hostages Niall ''Noígíallach'' (; Old Irish "having nine hostages"), or Niall of the Nine Hostages, was a legendary, semi-historical Irish king who was the ancestor of the Uí Néill dynasties that dominated Ireland from the 6th to the 10th centuries. ...

, from whom descended the Uí Ailello, a branch of the early Irish dynasty known as the

Connachta The Connachta are a group of medieval Irish dynasties who claimed descent from the legendary High King Conn Cétchathach (Conn of the Hundred Battles). The modern western province of Connacht (Irish ''Cúige Chonnacht'', province, literally "f ...

History

The Uí Aillelo dynasty sank into obscurity at an early date. but the name is preserved as the tuath of Tir Ollíol (Tirerril). The Lords of Tir Olioll were Mac Donnchadha of the Uí Briúin Aí a branch of the Mac Díarmada of

Moylurg {{Use dmy dates, date=April 2022 Magh Luirg or Magh Luirg an Dagda, Anglicised as Moylurg, was the name of a medieval Irish kingdom located in modern-day County Roscommon, Ireland. It was a sub-kingdom of the kingdom of Connacht from c. 956–1585. ...

(

Magh Luirg {{Use dmy dates, date=April 2022 Magh Luirg or Magh Luirg an Dagda, Anglicised as Moylurg, was the name of a medieval Irish kingdom located in modern-day County Roscommon, Ireland. It was a sub-kingdom of the kingdom of Connacht from c. 956–1585. ...

). The Mac Donagh (Mac Donnchadha) surname originates from Donnchadh, son of Tomaltach na cairge (of the rock) ua Mac Diarmata, who was King of Moylurg 1197-1207. They later split into two groups, one based in

Collooney Collooney or Coloony () is a town in County Sligo, Ireland. Toponymy Collooney is thought to derive from . Reverend Terrence O'Rorke has previously also suggested ''Culmaine'', as Collooney is designated this way in such works as ''the annals ...

and

Ballindoon Ballindoon () Friary was a Dominican priory beside Lough Arrow in County Sligo County Sligo ( , gle, Contae Shligigh) is a county in Ireland. It is located in the Border Region and is part of the province A province is almost always a ...

(Tirerril), and the other in

Ballymote Ballymote () is a market town in southern County Sligo, approx. 24 km south east of Sligo town in the province of Connacht, which is located in the north-west of Ireland. Ballymote lies in the barony of Corran. A commuter town with a stro ...

(

Corran Corran may refer to: Given name *Corran Addison, South African canoeist *Corran Horn, fictional character from the ''Star Wars'' franchise * Corran McLachlan, scientist and entrepreneur *Coran: character from Voltron Surname * Andrew Corran, born ...

Saint Patrick

Saint Patrick departed across the mountain of the sons of Ailellus, and he founded churches there, Taemnach, and Ethenach, and Cell Angle, and Cell Senchuoe. AD 545.2 St. Ailbhe, of Seanchu Ua nOiliolla, died.

References

Medieval Ireland Historic Gaelic Territories {{Ireland-stub