Pre anglo norma invasion irish ancient schools map

Leath Cuinn (Conn's Half) and Leath Moga (Mugh's half) are legendary ancient divisions of Ireland. Leath Cuinn was the island north of the

Esker Riada The Esker Riada ( ga, Eiscir Riada) is a system of eskers that stretch across the middle of Ireland, between Dublin and Galway. Geography The Esker Riada is a collection of eskers that passes through the counties of Dublin, Meath, Kildare, Westm ...

(east-west drumlin belt from Dublin to Galway Bay).

Conn Cétchathach Conn Cétchathach (; "of the Hundred Battles"), son of Fedlimid Rechtmar, was a semi-legendary High King of Ireland and the ancestor of the Connachta, and, through his descendant Niall Noígiallach, the Uí Néill dynasties, which dominated Irel ...

, for whom this division is named, was a retrospective ancestor of 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, literall ...

and

Uí Néill The Uí Néill (Irish pronunciation: ; meaning "descendants of Niall") are Irish dynasties who claim descent from Niall Noígíallach (Niall of the Nine Hostages), a historical King of Tara who died c. 405. They are generally divided into t ...

dynasties. Ireland's legendary ancient division into Leath Cuinn (Conn's Half) and Leath Moga (Mugh's half) resulted from the battle of Maigh Nuadad in 123 A.D. Conn, defeated by Eoghan Mor (also known as

Mug Nuadat In Irish mythological history Mug Nuadat (servant of NuadaDictionary of the Iri ...

), was forced to accede to the division of Ireland into two halves: * The North - taking in Connacht,

Ulster Ulster (; ga, Ulaidh or ''Cúige Uladh'' ; sco, label=Ulster Scots, Ulstèr or ''Ulster'') is one of the four traditional Irish provinces. It is made up of nine counties: six of these constitute Northern Ireland (a part of the United Kin ...

and

Meath Meath may refer to: General * County Meath, Republic of Ireland **Kingdom of Meath, medieval precursor of the county ** List of kings of Meath ** Meath GAA, including the intercounty football and hurling teams ** Diocese of Meath, in the Roman Cath ...

- would be Conn's Half * The South - taking in

Munster Munster ( gle, an Mhumhain or ) is one of the provinces of Ireland, in the south of Ireland. In early Ireland, the Kingdom of Munster was one of the kingdoms of Gaelic Ireland ruled by a "king of over-kings" ( ga, rí ruirech). Following th ...

Osraighe Osraige (Old Irish) or Osraighe (Classical Irish), Osraí (Modern Irish), anglicized as Ossory, was a medieval Irish kingdom comprising what is now County Kilkenny and western County Laois, corresponding to the Diocese of Ossory. The home of ...

and

Leinster Leinster ( ; ga, Laighin or ) is one of the provinces of Ireland, situated in the southeast and east of Ireland. The province comprises the ancient Kingdoms of Meath, Leinster and Osraige. Following the 12th-century Norman invasion of Ir ...

- would be Eoghan's Half. To solidify the arrangement, Conn's daughter,

Sadhbh In Irish mythology, Sadhbh or Sive ( ) was the mother of Oisín by Fionn mac Cumhail. She is either a daughter of Bodb Derg, king of the Síd of Munster, or may derive in part from Sadb ingen Chuinn, daughter of Conn of the Hundred Battles ...

was married to

Ailill Aulom Ailill Ollamh (or Oilill Olum) in Irish traditional history was the son of Mug Nuadat and was a king of the southern half of Ireland, placed in the 3rd century by early modern Irish genealogy. Sadb ingen Chuinn, daughter of Conn of the Hundred B ...

, son of Eoghan. The Eoganacht dynasty in Munster claimed, as descendants of Oiloill Olum, the historical right as overkings of Leath Moga (i.e. overlordship of Leinster as well as Munster) in the early medieval age, a claim disputed by the Uí Néill. In the twelfth century, the north-south division of Ireland was used as a basis for the new division of

dioceses in Ireland In church governance, a diocese or bishopric is the ecclesiastical district under the jurisdiction of a bishop. History In the later organization of the Roman Empire, the increasingly subdivided provinces were administratively associ ...

at the

Synod of Ráth Breasail The Synod of Ráth Breasail (also known as Rathbreasail) ( Irish: ''Sionad Ráth Bhreasail'') was an Irish Catholic church council which took place in Ireland in 1111. It marked the transition of the Irish church from a monastic to a diocesan and ...

Annalistic references

See

Annals of Inisfallen Annals ( la, wikt:annales, annāles, from , "year") are a concise history, historical record in which events are arranged chronology, chronologically, year by year, although the term is also used loosely for any historical record. Scope The natur ...

(AI) * ''AI929.2 Repose of Tuathal, learned bishop of Leth Cuinn.''

References

Aubrey Gwynn Aubrey Osborn Gwynn (17 February 1892 – 18 May 1983) was an Irish Jesuit historian. Life Aubrey Gwynn was born in Dublin on 17 February 1892. His father was the author and sometime Member of Parliament Stephen Gwynn; his paternal grandfather ...

, ''The Irish Church in the Eleventh and Twelfth Centuries'', Gerard O'Brien (ed.) (Four Courts Press, 1992). * Seaán Mór Ó Dubhagáin and Giolla-Na-Naomh Ó Huidhrín, ''

Topographical Topography is the study of the forms and features of land surfaces. The topography of an area may refer to the land forms and features themselves, or a description or depiction in maps. Topography is a field of geoscience and planetary scie ...

Poems'' , James Carney (ed.) (

Dublin Institute for Advanced Studies The Dublin Institute for Advanced Studies (DIAS) ( ga, Institiúid Ard-Léinn Bhaile Átha Cliath) is a statutory independent research institute in Ireland. It was established in 1940 on the initiative of the Taoiseach, Éamon de Valera, in Dub ...

, 1943). {{DEFAULTSORT:Leath Cuinn and Leath Moga Irish legends Ancient peoples Geographic history of Ireland