Name Prefix:<NPFX> King
King of Ireland (512-534), called mac Earca "Eire's son," w
as one of the victors of the decisive battle of Ocha, 482
, where the high king, Ailill Molt (not descended from Nial
l of the nine hostages) was slain and which established th
e Ui Neill alone in the high kingship for the next five cen
turies; defeated and slew Oengus, King of Munster, 489, def
eated and slew Duach, King of Connaught, 504, extended hi
s kingdom of Ailech by conquests in Derry from the men of O
riel; defeated the Leinstermen, and slew Sighe mac Dian, wh
ose daughter Sin became his concubine to avenge her father
, and he was killed when she fired the house while he lay d
runk, at All-hallowe'en, 534. Married the daughter of his e
nemy.