Tuireann

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In Irish mythology, Tuireann (Old Irish: Tuirenn or Tuirill Biccreo) was the father by Danu (or Brigid) of Creidhne, Luchtaine, and Goibniu.{{cite web|url=https://www.oxfordreference.com/view/10.1093/oi/authority.20110803100247501 |title=Oidheadh Chlainne Tuireann| website=Oxford Reference| access-date=2021-07-04}}

His other sons included Brian, Iuchar, and Iucharba, who killed Lugh's father Cian. As an erec (a recompense fine), they were sent on a quest recounted as Oidheadh Chlainne Tuireann (The Tragedy of the Sons of Tuireann), one of the Three sorrowful tales of Erin. After Lugh had taken his elaborate revenge, Tuireann died of grief over their graves.

He is stated in various portions of Lebor Gabála Érenn to be the same person as Delbáeth mac Ogma, who is also credited as the father of Brian, Iuchar, and Iucharba.Macalister, R. A. Stewart. (1941). Lebor Gabála Érenn. Part IV. Irish Texts Society, Dublin. § VII, First Redaction, ¶ 316.