Earlier than the time of Cairbre, son of Niall, the lands bordering Lough Sheelin, near the borders of counties Cavan, Longford, Westmeath and Meath, were inhabited by the pre-Gaelic? Glasraige people. When Niall of the Nine Hostages, King of Tara 379-406, was seeking territories for his numerous sons, he planted one of them, Maine, at Ardagh, and another, Cairbre, at Granard, whom he made lord and leader over the earlier peoples who possessed that land. These people were the Glasraidhe who occupied northern Teathbha (an ancient name for the area about Co. Longford).

The descendants of Cairbre, called the 'Ui Cairbri,' became the ruling family group in the area. Later the ' Conmaicne ' people pushed the ' Uí Cairbri ' people into a small space in the North-east corner of their once extensive kingdom (Meath, Fermanagh; Oriel). A tenth century chieftain of the Conmaicne was name Anghaile, and his descendants became known as Uí Anghaile (Annally of Thomond). The last lord of the ' Ui Cairbri ' line, described as the ' grandson of Cronin,' was slain at Granard in 1161. In the late twelfth century the Lords of Cairbre saw their territory being steadily encroached upon and filched away by the O'Rourkes on the North and the O'Farrells on the South.

The Book of Ballymote mentions the Glasraighe in Luigne of Meath, in the midland region of Ireland. They held the land of Uí Becon, the Uí Fiachrach and the "Luighni". They were 'exterminated' at the battle of "Cloithrean" by Nathi, son of Fiachra, and ever since that time Síl Nathi held Tír mBecon and Tír Fiachrach in Meath. The Book of Lecan places them in Magh Femin, while the Book of Lismore places them in Ciarraige Luchra, both apparently located in Munster.

Located in western Co. Cavan and northern Co. Meath. In the annals of the Four Masters about 728, Taichleach, son of Cenn Faeladh, is cited as Lord of Luigne (Mide).

Muintir Geradháin, ocated on the west side of Lough Gowna in Co. Longford, possibly extending into south Leitrim. Mag Fhionnbhairr (e.g. Mac Ginver, Gaynor, or Finnevar) were noted chiefs.

Located in County Sligo, the chiefs of Luigne in Sligo included O'Hara (Ó hEaghra) and O'Gara (Ó Gadhra). An early Luigni Connacht genealogy (in Rawlinson): Diarmait m. Fínnachta m. Cobthaich m. Máel Dúin m. Cind Fáelad m. Taiccthich m. Cind Fáelad m. Diarmata m. Findbairr m. Brénaind m. Nad Fróech m. h-Idin m. h-Idchuir m. Niad Chuirp m. LUí (a quo Luigni) m. Cornáin m. Taidgc m. Céin m. Ailella Auluimm.


The Book of Leinster places them in Cualngiu [Eitheandca], and an early genealogical reference sems to connect Glasraigi h-i Cuailnge to Clan Conaill Cernaich, in descent from clan Conaill Costamail. Another early genealogy of the Glasraige attempts to connect them to Glas, of the race of Cairbre mac Neill (Ui Cairbri & Cairpre Gabra): Cú Maige m. Ingordail m. Ernáine m. Áedgega m. Fintain m. Mc Reithe m. M. Daimle m. Dega m. Cairpri m. Néill.

The name Muintir Anghaile became anglicized as the territory of Annaly in county Longford. Ua Fearghaile (O'Farrell) were long-time chiefs of Annaly. Their ancestry is claimed from the Conmaicne.

Located in County Longford. O Cuinn (O'Quin) were lords of Muintir Giollagain, described at an early date as a principal tribe in Teathba. Their lineage is described in the Topographical Poems of O Dubhagain and O Huidhrin of the race of Rudhraigh, that is, of the same stock as Mag Raghnaill of Muinter Eolais, Muinter Fearghail, Mac Maoiliosa of Magh-Breacraighe, and Mag Finnbhairr of Muinter-Geradhain. McLysaght gives them as the same stock as the O'Farrells. This appears to tie their ancestry to that of the Conmaicne (of clan Rudhraigh) near the border of modern counties Leitrim and Longford. Their power was greatly reduced by the rise of the Muintir Anghaile, a tribe of the Conmaicne Rein later represented by their ruling sept, the O'Farrells.

Centered in Oughteragh parish, barony of Carrigallen, southern co. Leitrim, a territory and tribe name later represented by Mag Dorchaidh (Mac Dorcy, Darcy). According to the Book of Fenagh, the name derives from a branch of Conmaicni Réin, i.e. the race of Luachan, son of Onchu, and 4th in descent from Cumscrach. The same source cites Uí Dubáin as a sept of Cenél Luachain of Conmaicne Réin. Septs of Cenél Luachain were also noted in co. Longford.

Caladh, remembered in the name Callow, was a district in the barony of Kilconnell, county Galway. In the Book of Uí Maine it mentions the King of Caladh "owned from Móinín Raideach [Móin Inraidech] to Cluain Tuaisceart na Sinda." O'Hart cites that O'Laodog or O'Laodhaigh, anglicised "O'Leahy," were chiefs of Caladh in this barony. McLysaght makes note of the sept of Lahiff (sometimes O'Lahy) in this general and gives their Gaelic name as O Laithimh. Caladh, i.e. Caladh na hAnghaile, was also a name given to a region in Annaly in modern co. Longford.

In O'Donovan's Tribes and Customs of Hy Maine are described the septs of Clann Cernaigh, in Tuaiscert Uí Maine. These included Uí Fináin (properly Uí Uain, alias Úi Nadsluaigh), Uí Laidhin (barony of Kilconnell), Uí Lachtnain, Uí Conbhuidhi, Uí Ullscaidh (alias Úi Fallscaidi), Uí Ceinneididh, Uí Dorchaidhi, Uí Sidhacháin (the pipers of Uí Maine), Uí Furadháin, Uí Cuillen (or Cuilein), and Uí Crabhadhain.

Clann Indrechtaigh, alias Clann Innrachtaigh mic Maelduin are described in In O'Donovan's Tribes and Customs of Hy Maine as a branch of Síl Anmchadha, including Muinter Ruairc, Mac Brain, Mac Muroin, Muinter Mailchadha (of whom are Muinter Dubhlainn, Uí Flannchadha, &c.), Muinter Mailcroin, Mic Dungail, Muinter Arrachtain, Muinter Dubhgilla, and Muinter Conrui.