mac FIACH Criomhthan

Abt 0400 -

• Name	mac FIACH Criomhthan
  Birth	Abt 0400	Tara, Meath, Ireland
  Gender	Male
  Death	Ireland
  Notes	Criomhthan Liath was a son of Fiach. "Liath" (grey haired) is an epithet implying that Criomhthan was an old man when Saint Patrick came to Ireland about the year AD 433. [1] Crimthann was the son of Fiacc. He also had brother Brion. [2] Criomhthan Liath had five sons - [3] Eochaidh Fergus Ceannfada Luighaidh Muireadacb, Aodh (also called Eochaidh) Sources ↑ John O'Hart in page: 188 of Irish Pedigrees, Or, The Origin and Stem of the Irish Nation part Vll Stem of the O'Hart Family ↑ Eoin MacNeill, "The Vita Triparta of St. Patrick," digital images, Google Books Ériu: Founded as the Journal of the School of Irish Learning Devoted to Irish Philology and Literature 11, (1932): 30-31; ↑ Irish Pedigrees : Heremon Genealogies by John O'Hart page: 670 - "89: Criomhthan Liath" Wikipedia : Crimthann Mac Fidaig Wikidata: Item Q1272225, en:Wikipedia help.gif John O'Hart in page: 188 of Irish Pedigrees, Or, The Origin and Stem of the Irish Nation part Vll Stem of the O'Hart Family Jaski, Bart Genealogical tables of medieval Irish royal dynasties Table-24,48 Early Irish Kingship Succession by Jaski Bart, Published by Four Courts Press, 2013, ISBN 1846824265 ISBN 9781846824265
  Person ID	I58511	Freeman-Smith
  Last Modified	27 Jan 2026

  
  

  Father	FLACC Fiach,   b. 0370, Ireland d. Ireland
  Relationship	natural
  Family ID	F347164	Group Sheet  |  Family Chart

  
  

  Family
  Children	1. mac CREMTHIN Eochaidh,   b. 0430, Tara, Meath, Ireland  [Father: natural]
  Family ID	F347163	Group Sheet  |  Family Chart
  Last Modified	27 Jan 2026