Derb Forgaill ingen Lethlobair

• Name	Derb Forgaill ingen Lethlobair  [1]
  Gender	Female
  Also Known As	Derb Forgaill ingen Uí Laidcnén  [1]
  Person ID	I29	O'Brien Genealogy
  Last Modified	22 May 2026

  
  

  Father	Lethlobar Ua Laidcnén, King of Airgíalla
  Family ID	F21	Group Sheet  |  Family Chart

  
  

  Family	Murtaugh O'Brien, High King of Ireland,   b. Abt. 1050   d. Abt. 10 Mar 1119 (Age 69 years)
  Children	1. Mathgamain O'Brien   2. Domnall O'Brien, King of Dublin   d. 1135, Lismore, Waterford, Ireland   3. Bjaðmunjo O'Brien   4. Lafracoth O'Brien
  Family ID	F17	Group Sheet  |  Family Chart
  Last Modified	22 May 2026

  
  

• Sources

  [S5] Wikipedia Contributors, Wikipedia: The Free Encyclopedia, "Domnall Gerrlámhach," https://en.wikipedia.org/wiki/Domnall_Gerrlámhach, (San Francisco, CA: Wikimedia Foundation, Inc.).