Donal O'Brien

~ Donal O'Brien, 2nd son of Brian Ruadh (O'Hart gen. 114); m. Margaret, da. of Turlogh Dubh MacMahon of Clondarala [Clonderalaw, co. Clare]; sons Bryan (our line), Donogh, Donal. Source: John O'Hart, Irish Pedigrees (5th ed. 1892), 'O'Brien (No.6) - Of Ara, in the County of Tipperary', gen. nos. as cited (Library Ireland transcription, read 28 Oct 2026); O'Hart's own authority is the MS 'Mac Ui-Brien Ara', Trinity College Dublin H.1.7. ~ throughout: single compiled Gaelic pedigree, not checked against the annals rung by rung. [DIRECT ANCESTOR OF THE COMPILER: flag added 28 Oct 2026 by walking the tree from Aynsley, so that this marker is reliable and can be searched.]