Toirdelbach Ua Briain died in 1086.
Toirdelbach Ua Briain was born in 1009.
Irish comedian Dara Ó Briain is 45 years old (birthdate: February 4, 1972).
Mughron Ua Níoc died in 1032.
Conn Ua Mellaig died in 1202.
Flaithbertach Ua Néill died in 1036.
Brian Ua Néill died in 1260.
Muirchertach Ua Briain was born in 1050.
Diarmait Ua Briain was born in 1060.
Muirchertach Ua Briain died in 1119.
Diarmait Ua Briain died in 1118.
Domnall Mór Ua Briain died in 1194.
Dara Ó Briain was born on February 4, 1972.
Donnchadh Ó Briain was born on 1897-11-17.
Dara Ó Briain was born on February 4, 1972.
The Ó as in Ó Briain (O'Brien) comes from the older Irish word Ua (grandson, grandchild; descendant).
Toirdelbach mac Ruaidhi Ó Conchobair died in 1239.
Lorcán Ua Tuathail was born in 1128.
Domnall Ua Lochlainn was born in 1048.