Mac Brady - Irish / Mheic Braidaigh - bradach / spirited. A Heremonian Ui Cobhthaigh Dal Cuinn Ui Briuin Sept / Family branch, in the kingdom of Breifne who had their territory in Co. Cavan in Southern Ulster, where they were Chiefs of Fir Breifne (Men of Breifne.) See also the Dal gCais O Gradys in Co. Clare in the north - west of Thomond / Northern Munster. Ancestors: *87.Brion the original 1st King of Connacht (Ui Briuin), *88.Eochy "Mugmedon" the 124th King of Tara / Ireland.

Mac Brady / Mheic Bradaigh. A Heremonian Ui Cobhthaigh Dal Cuinn Colla da Crioch Siol Daim Argait (Ui Cremthainn) Clann Nadsluaigh Sept / Family branch, who had their territory at Clones in Co. Monaghan in Southern Ulster. They were kinsmen to the Mac Mahons / Mac Mahan / Mac Maghan / Mheic Mathghamhna, Mac Ardle / Mac Ardall / Mac  Cardle / Mac Cardwell / Mheic Artghail, O Carroll / O Carool / Ui Cearbhaill, Mac Giver / Mac Keever / Mac Ever / Mac Kever / Mheic Iomhar, Mac Philip / Mac Phillips / Mac Phillip / Philipson. Ancestors: *92.Nadsluaigh, *91.Cairpre "Dam Argait," *90.Eochy / Eochu, *89.Criffan / Crimthann "Lethan," *88.Fiacc, *87.Daig "Duirn, *86.Rochaid / Rochadh / Rochatha, *85.Murray / Muiredach "Colla da Crioch" / "Focrith "- of the Two Countries, *84.Eochy / Echu "Doimhlen," *83.Cairbre "Liffeachair" the 116th King of Tara / Ireland.

Bragan - Irish / Ua Bragain. A Sept / Family branch, who had their territory in Co. Louth in the north - east of Northern Leinster.

O Brahan - Irish / Ua Brachain. A Sept / Family branch, who had their territory in Co. Limerick in the mid - north - west of Thomond / Tuaiscert Mhumhain / Northern Munster, and also in Co. Wexford in the south - east of Southern Leinster.

O Brallaghan, or O Bradley, which see - Irish / Ua Brollachain (Descended from Brollach (breast.) A Heremonian Ui Cobhthaigh Dal Cuinn "Northern" Ui Niaill Cenel nEogain Feradaigh Sept  / Family branch,  who had their territory in Co. Derry, Co. Donegal and Co. Tyrone in the Ulster Province. They also had a sub - Sept in Co. Cork in Desmond / Southern Munster who used the name O Bradley. Ancestors: *88.Eogan the 1st King of Aileach (Cenel nEogain), *87.Niall of the Nine Hostages the 126th King of Tara / Ireland (Ui Niaill).

O Brally - Irish / Ua Brolaigh. A Sept / Family branch, who had their territory in Co. Donegal and Co. Derry in the north of the Ulster Province, who were from the Cenel Oenghusa. See also - O Brolly and O Brawley.

Mac Bran - Irish / Mheic Brain. A Sept / Family branch, who had their territory in the west of Co. Clare in the north - west of Thomond / Tuaiscert Mhumhain / Northern Munster. See also - Brann.

O Branagan or O Brannagan. A Sept / Family branch, who had their territory in Co. Louth in the north - east of Northern Leinster.

Brandon. A branch of the Anglo - Irish Fitz Maurices, which see, who Gaelicized their name as Mheic Breandain, who were in Co. Kerry in the south - west of Desmond / Southern Munster.

O Braniff / Irish / Ua Branduibh - bran / raven - dubh / black. A Sept / Family branch, who had their territory in Co. Down in the south - east of the Ulster Province.

O Branigan or O Brangan - Irish / Ua Branagain - bran / raven. A Heremonian Ui Cobhthaigh Dal Cuinn "Northern" Ui Niaill Cenel nEogain Sept / Family branch, who had their territory in Co. Armagh and Co. Monaghan in Southern Ulster. Ancestors: *88.Eogan the 1st King of Aileach (Cenel nEogain), *87.Niall of the Nine Hostages the 126th King of Tara / Ireland  (Ui Niall.)

Brann / bran - raven. They were in the east of the Ulster Province.

Brannagh or Brennagh - breathnach / stranger. Many changed to Walsh, but it is still in use in the Connacht Province.

O Brannan or O Brennan - Irish / Ua Branain. An Erenagh Sept / Family branch, who had their territory originally in Co. Fermanagh in the south - west of the Ulster Province. who were also in Co. Monaghan in Southern Ulster. See also O Brennan and O Branny.

Mac Brannan or O Brennan - Irish / Mheic Branain - bran / raven. A Sept / Family branch, who had their territory in the north east of Co. Roscommon in the east of the Connacht Province.

O Brannelly or O Branley - Irish / Ua Branghaile / branghal / raven of valour. A Sept / Family branch, who had their territory in the east of Co. Galway in Southern Connacht.

Bransfield. English toponymic origins. They were in the west of Co. Waterford in the south - east of Ormond / Eastern Munster, and in the south - east of Co. Cork in Desmond / Southern Munster, and it may also be a corrupt form of Blanchfield, which see.

O Brassil or O Brassill or O Brassell (East) (Ui Breasail Septs) A Heremonian Ui Cobhthaigh Dal Cuinn Colla da Crioch Sept / Family branch. Ancestors: *85.Murray / Muiredach "Colla da Crioch" / "Focrith" - of the Two Countries, *84.Eochy / Echu "Doimhlen," *83.Cairbre "Liffeachair" the 116th King of Tara / Ireland.

Brassil or Brassill. See - Brazil.

Brassin -

O Brawley - Irish / Ua Brolaigh. A Sept / Family branch, of the Cenel Oenghusa, who had their territory in Co. Donegal and Co. Derry in the north of the Ulster Province. Also see O Brolly and O Bralley.