This tree has been isolated from other trees on Geni: Tree is fictional

Geni does not allow isolated trees to be merged into the World Family Tree, or other trees.

Mongfind (Lebor Gabála Érenn)

Is your surname O'Hailill?

Research the O'Hailill family

Mongfind (Lebor Gabála Érenn)'s Geni Profile

Share your family tree and photos with the people you know and love

  • Build your family tree online
  • Share photos and videos
  • Smart Matching™ technology
  • Free!

Mong Fionn ingen Fideach O'Hailill, {Mythological}

Also Known As: "Fair Mane", "Queen of Ireland"
Birthplace: Munster, Ireland
Death: circa 380 (31-48)
Inish Donglais, Mayo, Ireland
Place of Burial: Ireland
Immediate Family:

Daughter of Private
Wife of Eochaid mac Muiredach (Lebor Gabála Érenn)
Mother of Brion mac Echdach (Lebor Gabála Érenn) and Olioll mac Echdach

Managed by: Private User
Last Updated:

About Mongfind (Lebor Gabála Érenn)

-Mongfionn, also known as "Mongfind" the first wife of Eochaid Mugmedón, and mother of his eldest three sons, Brion, Ailill and Fiachrae, ancestors of the historical Connachta, through whom she is an ancestor of many Irish and European nobility today. Some also say she was an advisor to her step-son, Niall Noígíallach.


Father: Fidrach

Husband: Eochaid Mugmedón

Son: Ailill

Son: Fiachrae

Son: Brión

Son: Fergus


Mong Finn Of Ireland, daughter of Fidach Of Ireland.

3398628555358211. Mong Find, d. 378, cause of death was self inflicted poisoning. Mong poisoned her brother, Crimhthann, so that her eldest son, Brion, could become king. She failed even though she sacrificed herself by drinking from the poisoned cup to removed her brother's suspicions..

First name aka 'Mongfind'. She was a goddess the pagen Irish worshipped on Samhain.

From Wikipedia, the free encyclopedia

Mongfind (or Mongfhionn in modern Irish)—meaning "fair hair" or "white hair"—was the wife, of apparent Munster origins, of the legendary Irish High King Eochaid Mugmedón and mother of his eldest three sons, Brión, Ailill and Fiachrae, ancestors of the historical Connachta, through whom she is an ancestor of many Irish and European nobility today. She was the sister of Crimthann mac Fidaig, King of Munster and the next High King of Ireland, whom she is said to have killed with poison in the attempt to have the kingdom for her sons.[1][2] She drank the same to convince him, and died soon after at Samhain, becoming a goddess of sorcery.[2][3]

She was the first wife of Eochaid; he took a second wife, Cairenn, who gave birth to Niall of the Nine Hostages. Several stories depict Mongfind as an adversary of her stepson.

According to Cormac's Glossary,[4] she was a goddess the pagan Irish worshipped on Samhain. This was also called the Féile Moingfhinne i.e. "Festival of Mongfind".[2][3] Later legend, as documented in Patrick Weston Joyce's Social History of Ancient Ireland, makes her a bean sidhe. A prominent hill called Cnoc Samhna "Hill of Samhain"[5] also known as Ard na Ríoghraidhe "Height of the Kingfolk" south of Bruree, County Limerick is associated with a tale connected to Mongfind. "Anocht Oíche Shamhna Moingfhinne banda" is children's rhyme from County Waterford which translates as "Tonight is the eve of Samhain of Mongfhionn the goddess". Variant spellings of her name include Mongfinn, Mongfionn, Mongfhind, Mongfhinn, Mongfhionn, Mongfinne, Mongfhinne, Mong Find, Mong Finn, Mong Fionn, Mong Fhionn, Mungfionn, Mung Finn, Mung Fionn.

Mongfind and her brother, children of Fidach and grandchildren of Dáire Cerbba in most sources, are sometimes said to belong to an early or peripheral branch of the Eóganachta. However, this is unlikely, as the evidence suggests that, if historical, they belong to a distinct people associated with other kingdoms, possibly the Dáirine, who may be referred to as their people in an obscure poem in Old Irish by Flann mac Lonáin (d. 896).[6] In the Banshenchus she is called "Mongfind of the Érnai" (Érainn), and given a later son Sidach following the Connachta.[7] Dáire Cerbba is stated in Rawlinson B 502 to have been born in Mag Breg (Brega), Mide,[8] much of which probably remained Érainn territory at the time of his supposed floruit. It is difficult to distinguish the Dáirine from the Érainn in the surviving corpus.

"Alternate" version

An interesting alternate version of the story of Mongfind and her sons exists in a saint's life from the Book of Lismore.[9][10] In this she is associated with sites belonging to her relatives the Uí Fidgenti,[10] although they are not specifically mentioned, and neither is Crimthand Mór, her brother in the other tales. She is stated simply to be the daughter of Dáire (Cerbba?), son of Findchad, someone otherwise unknown, and her father in the other sources, Fidach, is not mentioned. Further, she is the wife of the King of Ulster and the names of their three sons are not those of the Three Connachta.

It is difficult to date the tale. Though the manuscript is late, it is also of Munster provenance and so it may contain archaic elements lost in the tales involving the sons of Eochaid Mugmedón. The fact that Dún Eochair is mentioned as a seat of the King of Munster suggests memories from the time before the 7th century when the Dáirine ruled the kingdom, as this was one their great seats,[11] later inherited by the Uí Fidgenti, who were probably Érainn or Dáirine themselves. This has the effect of putting more distance between Mongfind and the Eóganachta.

But as no Mongfind is recorded as the wife of any Ulster king, it is likely the Munster storytellers forgot her legendary role as the fracturer of the Uí Néill from the Connachta but could still recall associated localities in Munster. She is placed in the alternate version encamped at Cnoc Samhna (Knocksouna) i.e. Ard na Ríoghraidhe,[10] which may have been the inauguration site of the Uí Fidgenti. Later tradition finds them in alliance with Mongfind's descendants the Uí Fiachrach Aidhne, especially in the time of Guaire Aidne mac Colmáin, king of Connacht.

Anachronistically, the King of Munster given in the tale is Cathal mac Áedo (d. 627), possibly a replacement for Mongfind's brother, Crimthann mac Fidaig. Pictish princess

Mongfind also occurs as the name of the Pictish princess wedded to Conall Corc, ancestress of the Eóganacht Locha Léin of Iarmuman and of a line of powerful Pictish kings, e.g. Óengus I of the Picts, but it appears this can be dismissed as a case of coincidental influences on the story associating Crimthann mac Fidaig with the Pictish king and father, called Feredach.[12] From the perspective of the early Eóganachta, Crimthann mac Fidaig, named in various sources as "King of Ireland and Alba", was hostile to his supposed cousin or nephew Conall Corc, who went on a journey to Pictland and there was married to the daughter of the Pictish king. The descendants of this marriage were the Eóganacht Locha Léin and were hostile to the Inner Circle ruling at Cashel. It appears to have been in this political climate that the "original" Irish queen/goddess Mongfind became associated with the Picts.

A major remaining difficulty is how the historical Conall Corc and Crimthann mac Fidaig may originally have been related to each other. Possibly it was through marriage. Unfortunately the traditions of the Connachta provide no clues and nowhere associate the Mongfind known to them with Conall Corc, and likewise she is unassociated by name with her supposed brother or even with the Eóganachta in the Munster tales, with only the notoriously unreliable genealogies providing these links for scholars. In one and perhaps the oldest version of Mongfind's pedigree the Uí Liatháin are close kin, who are broadly associated with Crimthann mac Fidaig in other sources. Theirs is said in several early tales to have been a sister kingdom to the Uí Fidgenti mentioned above, which the genealogies confirm, but modern scholarship dismisses the two as 8th century add-ons to the Eóganachta pedigree,[13] which may have implications for the ancestry of Mongfind and Crimthann. Additionally, the descent of the Eóganacht Locha Léin from Conall Corc has also been questioned. Only the Eóganacht Raithlind had a generally close relationship with the Inner Circle, and although they are sometimes associated with the Eóganacht Locha Léin, they were also not said to be products of the marriage of Conall Corc to the Pictish princess "Mongfind".

Notably, the other wife of Conall Corc was Aimend of the Corcu Loígde, who may also have been a goddess in origin. Unlike Mongfind, Aimend is directly stated to have been his wife in all sources.

Descendant houses

Both the Uí Briúin and Uí Fiachrach provided many Kings of Connacht. Each dynasty further provided two High Kings of Ireland apiece: Nath Í and Ailill Molt; Toirdelbach Ua Conchobair and Ruaidrí Ua Conchobair.

   Uí Briúin
       Uí Briúin Ai
           O'Conor Don
       Uí Briúin Bréifne
   Uí Fiachrach
       Uí Fiachrach Aidhne
           Ó Cléirigh
           Hynes[disambiguation needed]
       Uí Fiachrach Muaidhe
   Uí Ailello

She died before Eochaid was born. cannot be his wife unless she is mythical.

view all

Mongfind (Lebor Gabála Érenn)'s Timeline