Milesius
Milesius, or Miledh, a mythical personage, whose widow and descendants are fabled, according to the Four Masters, to have landed in Ireland long before the Christian era.
“The fleet of the sons of Miledh [Milesius] came to Ireland to take it from the Tuatha-de-Dananns; and they fought the battle of Sliabh Mis with them on the third day after landing. In this battle fell Scota, wife of Miledh; and the grave of Scota is between Sliabh Mis and the sea [still pointed out in the valley of Gleann-Scoithin, County of Kerry] … After this the sons of Miledh fought a battle at Tailtinn [Teltown, Meath], against the three Kings of the Tuatha-de-Dananns.”
Eremhon and Eamhear then divided Ireland between them; but a dispute arising, they fought a battle at Geshill, at which Eamhear was killed.
Eremhon, after reigning fifteen years, died, and was buried at Argat Ros, a mile below Ballyragget, on the banks of the Nore.
The long line of Irish kings, given by Keating and other historians, all trace their descent from Milesius, through his three sons, Eremhon, Eamhear, and Ith{1} (who died before the settlement in Ireland).
[{1} Presumably the author meant Ir as the third son, rather than Ith who was the uncle of Milesius. The line of Ir can be found in Irish Pedigrees. Eremhon and Eamhear are often referred to as Heremon and Heber, respectively.—LibraryIreland.com editor's note.]
Sources
134. Four Masters, Annals of Ireland by the: Translated and Edited by John O'Donovan. 7 vols. Dublin, 1856.
171. Ireland, History of, from the earliest period to the English Invasion: Rev. Geoffrey Keating: Translated from the Irish, and Noted by John O'Mahony. New York, 1857.