|Breslin||numerous: W Ulster, N Leinster, Dublin. Ir. Ó Breasláin. A brehon family of the North West. They were originally seated in Fanad, Donegal, but later became brehons to Maguire of Fermanagh. In the spoken language it is Ó Breisleáin.MIF & SGG.|
|Brislane||fairly rare: Tipperary, Limerick. Ir. Ó Breasláin. A Munster variant of Breslin, q.v.|
|Ó Breasláin||Breslin, Brislane: líonmhar: Iarthar Uladh, Tuaisceart Laighean. Bhí siad ina mbreithiúna i bhFear Manach tráth ach tá Brislane i dTiobraid Árann agus Luimneach. An bhrí: féach Ó Breasail. SGG.|
Parishes where Brislan and a second surname are found together
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