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Niall Noigiallach Eochaid

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Niall Noigiallach "Niall of the Nine Hostages" Eochaid aka High King of Ireland
Born [date unknown] in Irelandmap
Ancestors ancestors
Husband of — married [date unknown] [location unknown]
Husband of — married [date unknown] [location unknown]
Descendants descendants
Died in Irelandmap
Profile last modified | Created 21 Mar 2011 | Last significant change: 28 Dec 2018
01:15: Richard Devlin edited the Biography for Niall Noigiallach Eochaid (-0452). [Thank Richard for this]
This page has been accessed 3,498 times.

Categories: Irish History, Kingdom of Breifne | Irish History, Kingdom of Uí Néill | 4th Century | 5th Century | Irish Eponym Names | O'Neill Dynasty | O'Neill Name Study.

Ireland Native
Niall Noigiallach Eochaid was born in Ireland



Niall Noígíallach, Niall of the Nine Hostages may be mythological. He is the legendary progenitor of the Uı́ Néill dynasties, a warlord who reigned in the late 4th century and early 5th century. Niall Mor, Niall of the Nine Hostages is listed as the 126th monarch of Ireland in John O'Hart's Roll of the Monarchs of Ireland [1]


While primary sources for Niall Noigiallach do not exist (Wikipedia),[2] the Y-chromosome lineage of the medieval Uí Néill dynasty is one of the world's three most profilic (Calloway, 2015).[3] Moore (2006)[4] states that:

"Figures such as Niall of the Nine Hostages reside at the cusp of mythology and history, but our results do seem to confirm the existence of a single early-medieval progenitor to the most powerful and enduring Irish dynasty. They also lend support to the veracity and remarkable knowledge preservation of the genealogical and oral traditions of Gaelic Ireland and give a powerful and specific illustration of the link between prolificacy and power in one European society within the past 2 millennia".


the children of Inne, the daughter of Lugaid [5] [6]
- Faichu - ancestor of the Cenél Fiachach: the Southern Uí Néill
the children of Rignach - [7]
- Lóegaire - ancestor of the Cenél Lóegaire: the Southern Uí Néill
- Éndae
- Máiné - (see note re ancestor of the Uí Maine)
- Eógan - ancestor of the Cenél nEógain; the Northern Uí Néill
- Conall Gulban - of the Cenél Conaill; the Northern Uí Néill
- Conall Cremthainne - ancestor of the Clann Cholmáin & the Síl nÁedo Sláine
- Coirpre - ancestor of the Cenél Coirpri: the Southern Uí Néill


  1. Irish Pedigrees or the Origin and Stem of the Irish Nation part 2 page 59 by John O'Hart pub. 1892, Dublin
  2. Wikipedia: Niall of the Nine Hostages
  3. Calloway, E. (2015, January 23). Genghis Khan's genetic legacy has competition. Nature. NPG. Retrieved from
  4. Moore, L. T., McEvoy, B., Cape, E., Simms, K. & Bradley, D. G. (2006). A Y-chromosome signature of hegemony in Gaelic Ireland. The American Journal of Human Genetics, 78(2), pp. 334–338. PDF
  5. Wikipedia : Niall of the Nine Hostages
  6. Wikitree : Irish Kingdoms
  7. Wikipedia : Niall of the Nine Hostages


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DNA Connections
It may be possible to confirm family relationships with Niall Noigiallach by comparing test results with other carriers of his Y-chromosome or his mother's mitochondrial DNA. Y-chromosome DNA test-takers in his direct paternal line on WikiTree:

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On 10 May 2018 at 22:14 GMT Sunny (Trimbee) Clark wrote:

On 26 Nov 2017 at 17:16 GMT Al Scott wrote:

Here is another Source it List Descendants

, Origins of Gallagher, O'Neil McLaughlin and many other Irish Surnames Download pdf for quicker viewing. Also list all the Irish Kings back to Heber Scot ect back to Noah ect back to Adam This Book is a digital copy of Irish pedigrees; or, The origin and stem of the Irish nation Published 1892

On 9 Nov 2017 at 23:21 GMT Al Scott wrote:

On 7 Aug 2017 at 18:47 GMT Steve Selbrede wrote:

The DOB of both wives are not plausible, Rignach in c420 is too young. Inne in 290 is too old.

On 15 Sep 2016 at 15:58 GMT Marty (Lenover) Acks wrote:

Cenel n Eogain-9 and Eochaid-13 appear to represent the same person because: Same father, essentially same name

On 7 Jun 2015 at 01:24 GMT Marty (Lenover) Acks wrote:

Mac Eochy-1 and Eochaid-13 appear to represent the same person because: Same father, some same children. Dates are rather off, though profiles of this era are often off.

On 22 Feb 2015 at 23:27 GMT Jayme (Mullins) Arrington wrote:

UNKNOWN-18430 and Eochaid-13 appear to represent the same person because: Same person, may need more work before merge, but I'll look around at other matches too.

Niall Noigiallach is 42 degrees from Robin Helstrom, 43 degrees from Katy Jurado and 36 degrees from Victoria of the United Kingdom of Great Britain and Ireland on our single family tree. Login to find your connection.

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