Turlough O'Brien, High King of Ireland

1009 - 1086  (77 years)

• Name	Turlough O'Brien  [1, 2, 3, 4]
  Suffix	High King of Ireland
  Birth	1009  [2]
  Gender	Male
  Also Known As	Toirdelbach Ua Briain   [1, 3, 4]
  Also Known As	Toirdelbach ua Briain  [2, 4]
  Title	rí urmóir Erenn  [2]
  Title	1072  [4]
  	King of Dublin
  Title	1063-1072  [2]
  	King of Munster
  Title	1072-1086  [2]
  	High King of Ireland
  Death	14 Jul 1086	Kincora, Killaloe, Clare, Ireland   [2]
  Person ID	I15	O'Brien Genealogy
  Last Modified	22 May 2026

  
  

  Father	Tadc mac Briain, King of Munster   d. 1023
  Mother	Mór ingen Gilla Brigte
  Family ID	F9	Group Sheet  |  Family Chart

  
  

  Family 1	Dubchoblaig of the Uí Cheinnselaig   d. 1088
  Children	+ 1. Diarmait O'Brien, King of Munster
  Family ID	F12	Group Sheet  |  Family Chart
  Last Modified	22 May 2026

  
  

  Family 2	Derbforgaill of Osraige   d. 1098
  Children	+ 1. Tadc O'Brien, King of Munster   d. 1086, Kincora, Killaloe, Clare, Ireland + 2. Murtaugh O'Brien, High King of Ireland,   b. Abt. 1050   d. Abt. 10 Mar 1119 (Age 69 years)
  Family ID	F11	Group Sheet  |  Family Chart
  Last Modified	22 May 2026

  
  

  Family 3	Gormlaith of Ua Fógarta
  Family ID	F13	Group Sheet  |  Family Chart
  Last Modified	22 May 2026

  
  

  Family 4
  Children	+ 1. Mór O'Brien   d. 1088
  Family ID	F14	Group Sheet  |  Family Chart
  Last Modified	22 May 2026

  
  

• Sources

  [S2] Wikipedia Contributors, Wikipedia: The Free Encyclopedia, "Tadc mac Briain," https://en.wikipedia.org/wiki/Tadc_mac_Briain, (San Francisco, CA: Wikimedia Foundation, Inc.). [S3] Wikipedia Contributors, Wikipedia: The Free Encyclopedia, "Toirdelbach Ua Briain," https://en.wikipedia.org/wiki/Toirdelbach_Ua_Briain, (San Francisco, CA: Wikimedia Foundation, Inc.). [S1] Wikipedia Contributors, Wikipedia: The Free Encyclopedia, "Brian Boru," https://en.wikipedia.org/wiki/Brian_Boru, (San Francisco, CA: Wikimedia Foundation, Inc.). [S14] Wikipedia Contributors, Wikipedia: The Free Encyclopedia, "O'Brien dynasty," https://en.wikipedia.org/wiki/O'Brien_dynasty, (San Francisco, CA: Wikimedia Foundation, Inc.).