Diarmait O'Brien, King of Munster

• Name	Diarmait O'Brien  [1]
  Suffix	King of Munster
  Gender	Male
  Also Known As	Diarmaid  [2]
  Title	1114-1115  [2]
  	King of Munster
  Title	1115-1118  [2]
  	King of Munster (disputed)
  Person ID	I22	O'Brien Genealogy
  Last Modified	22 May 2026

  
  

  Father	Turlough O'Brien, High King of Ireland,   b. 1009   d. 14 Jul 1086, Kincora, Killaloe, Clare, Ireland (Age 77 years)
  Mother	Dubchoblaig of the Uí Cheinnselaig   d. 1088
  Family ID	F12	Group Sheet  |  Family Chart

  
  

  Family
  Children	+ 1. Conchubhar na Cathrach O'Brien, King of Munster + 2. Toirdhealbhach O'Brien, King of Munster   3. Tadhg O'Brien, King of Munster
  Family ID	F57	Group Sheet  |  Family Chart
  Last Modified	22 May 2026

  
  

• Sources

  [S3] Wikipedia Contributors, Wikipedia: The Free Encyclopedia, "Toirdelbach Ua Briain," https://en.wikipedia.org/wiki/Toirdelbach_Ua_Briain, (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.).