Career
John Ó Fialáin is stated in the Annals of Ulster as been the professor in poetry for the sons of Phillip Mág Uidhir upon his death in 1483. Cú Chonnacht is primerly known by his poem, Beith ré dán dlighidh ollam, a petiton to Tomás Óg Mág Uidhir, who died in 1480. lieutenant was written in the Book of O"Conor Don in Amsterdam in 1632, and published in 2010.