Fíachu Tolgrach, son of

Muiredach Bolgrach Muiredach Bolgrach, son of Siomón Brecc, was, according to medieval Irish legend and historical tradition, a High King of Ireland. He took power after killing his predecessor, and his father's killer, Dui Finn, ruled for 13 months or four years ...

, was a legendary High King of Ireland, according to some medieval and early modern Irish sources. In 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 is not a High King: he kills the former High King Art mac Lugdach, but during the reign of Art's son

Ailill Finn Ailill Finn, son of Art mac Lugdach, was, according to medieval Irish legend and historical tradition, a High King of Ireland. In the ''Lebor Gabála Érenn'', he succeeded to the throne when his father was killed by Fíachu Tolgrach and his ...

he is killed in battle against

Airgetmar Airgetmar, son of Sirlám, was, according to medieval Irish legend and historical tradition, a High King of Ireland. The ''Lebor Gabála Érenn'' says that, during the reign of Ailill Finn, he killed Fíachu Tolgrach in battle, but was forced i ...

. His son

Dui Ladrach Dui Ladrach, son of Fíachu Tolgrach, was, according to medieval Irish legend and historical tradition, a High King of Ireland. He helped his father kill the High King Art mac Lugdach, then helped Airgetmar take the throne by killing Art's son A ...

later becomes High King. However, in

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 ...

's ''Foras Feasa ar Éirinn'' and 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 In the history of Europe, the Middle Ages or mediev ...

''''

'
M4395
/ref> he succeeds Art as High King and rules for seven or ten years, until he is killed by Ailill Finn, who succeeds him. The chronology of Keating's ''Foras Feasa ar Éirinn'' dates his reign to 593–586 BC, that of the ''Annals of the Four Masters'' to 806–796 BC.

References

Legendary High Kings of Ireland {{Celt-myth-stub