Teige , King Of Thomond O'Brien
Teige , King Of Thomond was born about 0960.  He died in 1023.

 More O Mulloy
More O was born about 0960.  More O is no longer alive.

 Donough of Leister O'Brien
Donough of Leister was born about 0980.

 Toirrdelbach Mor , King Of Thomond O'Brien
Toirrdelbach Mor , King Of Thomond was born in 1009.  He died at the age of 77 on July 14th, 1086.