''The ''Clann Chindfaoladh''Chinnfaoladh are a branch of the ''Cenél Luighdech'' and take their name from CindfhealadhCinnfhaoladh, the great-grandfather of Baighill, the eponym of this clan's leading sept, the Ó Baoighill's. The Ó Baoighill were chieftains of Tír Ainmireach and Tír Boghaine in southern Donegal, with territory originally extending from Donegal town to near Cill Mhic Réanáin along the west coast. The barony of Boylagh is alleged to take its name from the O'Boyles. By the 13th century, the O'Donnells would see the O'Boyle territory divided in two; Tír Ainmireach in the south and the Three [[Tuatha]] in the north.
