Irish mythology Irish mythology is the body of myths native to the island of Ireland. It was originally oral tradition, passed down orally in the Prehistoric Ireland, prehistoric era, being part of ancient Celtic religion. Many myths were later Early Irish ...

, Fiacha (, sometimes Fiachu, Fiachra or Fiachna), son of Delbáeth, of the

Tuatha Dé Danann The Tuath(a) Dé Danann (, meaning "the folk of the goddess Danu"), also known by the earlier name Tuath Dé ("tribe of the gods"), are a supernatural race in Irish mythology. Many of them are thought to represent deities of pre-Christian Gae ...

, was a legendary

High King of Ireland High King of Ireland ( ga, Ardrí na hÉireann ) 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 later sometimes assigned an ...

. According to the ''

Lebor Gabála Érenn ''Lebor Gabála Érenn'' (literally "The Book of the Taking of Ireland"), known in English as ''The Book of Invasions'', is a collection of poems and prose narratives in the Irish language intended to be a history of Ireland and the Irish fro ...

'', he took the throne after his father was overthrown by Caicher son of Nama, brother of Nechtan.''

'
§63
/ref> The ''

Annals of the Four Masters The ''Annals of the Kingdom of Ireland'' ( ga, Annála Ríoghachta Éireann) or the ''Annals of the Four Masters'' (''Annála na gCeithre Máistrí'') are chronicles of medieval Irish history. The entries span from the Deluge, dated as 2,24 ...

'' and

Geoffrey Keating Geoffrey Keating ( ga, Seathrún Céitinn; c. 1569 – c. 1644) was a 17th-century historian. He was born in County Tipperary, Ireland, and is buried in Tubrid Graveyard in the parish of Ballylooby-Duhill. He became an Irish Catholic priest and a ...

say he overthrew his father himself. His mother was Ernmas. He had three daughters, Banba, Fódla, and

Ériu In Irish mythology, Ériu (; modern ga, Éire ), daughter of Delbáeth and Ernmas of the Tuatha Dé Danann, was the eponymous matron goddess of Ireland. The English name for Ireland comes from the name Ériu and the Germanic (Old Norse or Ol ...

, by his own mother.''

'
§64
/ref> He reigned for ten years, before he and his nephew Aoi Mac Ollamain were killed in battle against Éogan of Imber.

References

Tuatha Dé Danann Legendary High Kings of Ireland {{celt-myth-stub