In Irish mythology

Irish mythology

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 branch and the Historical Cycle. There are...

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

Delbáeth

In Irish mythology Delbáeth was the son of either Aengus or Ogma of the Tuatha Dé Danann, and Ethniu of the Fomorians. He succeeded his grandfather Eochaid Ollathair, aka the Dagda, as High King of Ireland. He was the father, by Ernmas, of the three eponymous Irish goddesses Ériu, Banba and Fodla...

, of the Tuatha Dé Danann

Tuatha Dé Danann

The Tuatha Dé Danann are a race of people in Irish mythology. In the invasions tradition which begins with the Lebor Gabála Érenn, they are the fifth group to settle Ireland, conquering the island from the Fir Bolg....

, was a legendary High King of Ireland

High King of Ireland

The High Kings of Ireland were sometimes historical and sometimes legendary figures who had, or who are claimed to have had, lordship over the whole of Ireland. Medieval and early modern Irish literature portrays an almost unbroken sequence of High Kings, ruling from Tara over a hierarchy of...

. According to the Lebor Gabála Érenn

Lebor Gabála Érenn

Lebor Gabála Érenn is the Middle Irish title of a loose collection of poems and prose narratives recounting the mythical origins and history of the Irish from the creation of the world down to the Middle Ages...

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

Nechtan

Nechtan, Nectan or Neithon may refer to:Kings:* Nechtan Morbet , king of the Picts* Nechtan nepos Uerb , king of the Picts* Nechtan mac Der-Ilei , king of the Picts...

. The Annals of the Four Masters

Annals of the Four Masters

The Annals of the Kingdom of Ireland or the Annals of the Four Masters are a chronicle of medieval Irish history...

and Geoffrey Keating

Geoffrey Keating

Seathrún Céitinn, known in English as Geoffrey Keating, was a 17th century Irish Roman Catholic priest, poet and historian. He was born in County Tipperary c. 1569, and died c. 1644...

 say he overthrew his father himself. His mother was Ernmas

Ernmas

Ernmas is an Irish mother goddess, mentioned in Lebor Gabála Érenn and "Cath Maige Tuired" as one of the Tuatha Dé Danann. Her daughters include the trinity of eponymous Irish goddesses Ériu, Banba and Fódla, the trinity of war goddesses the Badb, Macha and the Mórrígan , and also a trinity of...

. He had three daughters, Banba

Banba

In Irish mythology, Banba daughter of Ernmas of the Tuatha Dé Danann, is the patron goddess of Ireland....

, Fódla

Fódla

In Irish mythology, Fódla or Fótla , daughter of Ernmas of the Tuatha Dé Danann, was one of the tutelary goddesses of Ireland. Her husband was Mac Cecht....

, and Ériu

Ériu

In Irish mythology, Ériu , daughter of Ernmas of the Tuatha Dé Danann, was the eponymous matron goddess of Ireland. Her husband was Mac Gréine ....

, by his own mother. He reigned for ten years, before he and his nephew Aoi Mac Ollamain

Aoi Mac Ollamain

Aoi Mac Ollamain or Ai Mac Ollamain is a god of poetry and one of the Tuatha Dé Danann in Irish mythology. Ai is the son of Olloman, who saved him from the king's decree that Aoi be killed, a decree made response to a druid's prediction that Aoi would be born with special powers.-References:*...

were killed in battle against Éogan of Imber.