Donncuan MacDunlaig, King Of Leinster

Abt 950 - 1014  (64 years)

• Name	Donncuan MacDunlaig
  Title	King Of Leinster
  Birth	Abt 950	County Dublin, Ireland
  Gender	Male
  Death	1014	County Dublin, Ireland
  Person ID	I7375	footsteps
  Last Modified	1 Jul 2025

  
  

  Father	O'Muiredaig Dunlaing MacTuathal, King Of Leinster ,   b. 920, County Dublin, Ireland d. 29 Apr 1014, County Dublin, Ireland (Age 94 years)
  Relationship	natural
  Family ID	F4441	Group Sheet  |  Family Chart

  
  

  Family
  Children	+ 1. Gillacomgaill Mac Duncuan O'Tuathail,   b. Abt 980, Ireland d. Abt 1041 (Age 61 years)  [Father: natural]
  Family ID	F3893	Group Sheet  |  Family Chart
  Last Modified	1 Jul 2025

  
  

• Notes

  He was the first to put Ua, or O, before his name, and assume permanent l y t h e n a me Ua Tuathail or O Tuathail. (O'Toole, History of the Clan O ' T o o l e and other Leinster Septs, p. 66, line 119) He was slain at Leighlin in 1014.