Children

 Donnchad O'Brien King of Munster
Donnchad O'Brien King of was born in 0989.  He died at the age of 75 in 1064.


 Tadhg O'Brien King Of Munster
Tadhg O'Brien King Of was born in 1009 in Munster, Ireland.  He died at the age of 77 in 1086.