Eochu (or Eochaid), son of

Ailill Finn Ailill Finn, son of Art mac Lugdach, was, according to medieval Irish legend and historical tradition, a High King of Ireland. In the ''Lebor Gabála Érenn'', he succeeded to the throne when his father was killed by Fíachu Tolgrach and his s ...

, 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 ...

. He succeeded to the throne after his father was killed by Airgetmar and his ally Dui Ladrach. 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 ...

'', he was himself killed by Airgetmar and Dui.

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 ...

says he ruled for seven years, resisted Airgetmar and made peace with Dui, who killed him treacherously at a meeting, allowing Airgetmar to take the kingship. The ''Lebor Gabála'' synchronises his reign with that of

Artaxerxes II of Persia Arses (; 445 – 359/8 BC), known by his regnal name Artaxerxes II ( ; ), was King of Kings of the Achaemenid Empire from 405/4 BC to 358 BC. He was the son and successor of Darius II () and his mother was Parysatis. Soon after his accession, ...

(404–358 BC). The chronology of Keating's ''Foras Feasa ar Éirinn'' dates his reign to 577–570 BC, that of 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 ...

'' to 785–778 BC.''

'
M4415-4422
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References

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