in Irish mythology Cermait of the Tuatha Dé Danann was a son of the Dagda. He was known by the epithet Milbél ("honey-mouth"). He was killed by Lug after he had an affair with Lug's wife. His three sons, Mac Cuill, Mac Cecht and Mac Gréine, avenged his death, and went on to become joint High Kings of Ireland. The mythology of pre-Christian Ireland did not entirely survive the conversion to Christianity, but much of it was preserved, shorn of its religious meanings, in medieval Irish literature, which represents the most extensive and best preserved of all the branches of Celtic mythology. ... This article is about a mythical people of Ireland. ... The Dagda is an important god of Irish mythology. ... Lug or Lugh is an Irish sun god and king of the Tuatha Dé Danann whose name means light or brightness. His epithets include Lámfhada (long hand), for his skill with a spear or sling, and Samildánach (multi-talented, skilled in many arts). He is handsome, perpetually youthful... In Irish mythology, Mac Cuill of the Tuatha Dé Danann, was a son of Cermait, son of the Dagda. ... In Irish mythology, Mac Cecht of the Tuatha Dé Danann was a son of Cermait, son of the Dagda. ... In Irish mythology, Mac Gréine of the Tuatha Dé Danann was a son of Cermait, son of the Dagda. ... The office of High King of Ireland (Irish: Ard Rí Érenn) was in origin a pseudohistorical construct of the eighth century that placed a king of all Ireland atop the fragmented pyramid of kingship that actually existed at that time. ...