Aodh, son of Cobhthach — If this be true, O'Shaughnessy does not descend from Guaire Aidhne, King of Connaught, which was the boast of the Irish poets of the three last centuries, for Guaire was the son of Colman, the brother of the Aodh, who is here stated to have been the ancestor of O'Shaughnessy. Notwithstanding this statement, our author himself, in giving the pedigree of Sir Diarmaid O'Shaughnessy, deduces his descent not from Aodh, but from his brother Colman, through Guaire, King of Connaught, but it is highly probable that O'Shaughnessy is of the race of Aodh, as he is always mentioned in the Irish Annals as chief of the Cineal Aodha. In the Book of Lecan, the genealogical MS. of the O'Clerys, and in all the copies of Keating, the pedigree of O'Shaughnessy is deduced from Guaire Aidhne. This error seems to have arisen from mistaking Aodh, son of Cobhthach, the real ancestor of the Cinel Aodha, for Aodh, the grandson of Guaire Aidhne. This subject will be further considered in the pedigree of O'Shaughnessy, at the end of this volume.