Eochaid Faebar Glas, son of

Conmáel Conmáel, son of Éber Finn, according to medieval Irish legend and historical traditions, became High King of Ireland when he killed Ethriel, son of Íriel Fáid, in the Battle of Rairiu. He was the first Milesian High King to have been born ...

, was, according to medieval Irish legend and historical tradition, a

High King of Ireland High King of Ireland ( ) was a royal title in Gaelic Ireland held by those who had, or who are claimed to have had, lordship over all of Ireland. The title was held by historical kings and was later sometimes assigned anachronously or to leg ...

. His epithet means "blue-green sharp edge". According to the ''

Lebor Gabála Érenn ''Lebor Gabála Érenn'' (literally "The Book of Ireland's Taking"; Modern Irish spelling: ''Leabhar Gabhála Éireann'', known in English as ''The Book of Invasions'') is a collection of poems and prose narratives in the Irish language inten ...

'',

Geoffrey Keating Geoffrey Keating (; – ) was an Irish historian. He was born in County Tipperary, Ireland, and is buried in Tubrid Graveyard in the parish of Ballylooby-Duhill. He became a Catholic priest and a poet. Biography It was generally believed unt ...

's ''Foras Feasa ar Éirinn'' and 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 ...

'', he came to power after killing the joint High King, Cermna Finn, in battle at Dún Cermna (Downmacpatrick in

Kinsale Kinsale ( ; ) is a historic port and fishing town in County Cork, Ireland. Located approximately south of Cork (city), Cork City on the southeast coast near the Old Head of Kinsale, it sits at the mouth of the River Bandon, and has a populatio ...

County Cork County Cork () is the largest and the southernmost Counties of Ireland, county of Republic of Ireland, Ireland, named after the city of Cork (city), Cork, the state's second-largest city. It is in the Provinces of Ireland, province of Munster ...

), and Cermna's brother and colleague Sobairce was killed by Eochaid Menn of the

Fomorians The Fomorians or Fomori (, Modern ) are a supernatural race in Irish mythology, who are often portrayed as hostile and monstrous beings. Originally they were said to come from under the sea or the earth. Later, they were portrayed as sea raider ...

(another version of the ''Lebor Gabála'' says he came to power at the end of a seven-year interregnum following the death of

Tigernmas Tigernmas, son of Follach, son of Ethriel, a descendant of Érimón, was, according to medieval Irish legend and historical traditions, an early High King of Ireland. According to the ''Lebor Gabála Érenn'' he became king when he overthrew his ...

). He killed Smirgoll, grandson of Tigernmas, in the battle of Druimm Liatháin. He ruled for twenty years, until he was killed by Smirgoll's son Fiacha Labrainne in the battle of Carman. The ''Lebor Gabála'' synchronises his reign with that of Piritiades in

Assyria Assyria (Neo-Assyrian cuneiform: , ''māt Aššur'') was a major ancient Mesopotamian civilization that existed as a city-state from the 21st century BC to the 14th century BC and eventually expanded into an empire from the 14th century BC t ...

. Keating's chronology dates his reign to 1115–1095 BC, that of the ''Annals of the Four Masters'' to 1493–1473 BC.''

'
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References

Legendary High Kings of Ireland {{Ireland-royal-stub