Ferdomhnach Dall, Lector of Kildare and harpist, died 1110.
The Annals of Ulster for 1110 list the death of three Irish churchmen, including:
Ferdomhnach Dall fer leiginn Cille Dara .i. sui cruitirechta
Ferdomnach the blind, lector of Cell Dara, i.e. a master of harping
Ferdomhnach held the important post of fer leiginn (lector), an office associated with men such as Áed Ua Forréid (d. 1056) and Áed Ua Crimthainn (fl. 12th century), though it was also understood in the sense of a man of learning. He is perhaps the earliest attested Irish musician noted by name, specifically a sui cruitirechta/a master of harping.
Áed mac Felidlimid Ó Conchobair, known as Áed na nGall, was king of Connacht alongside his father Felim from 1258 reigning solely from 1265 until his own death in 1274. He is credited with turning the tide on Norman expansion in Connacht at the Battle of Áth an Chip. Aed took a different approach than his father to dealing with English crown authority in Ireland, placing his faith in alliances with the Gaelic speaking world and becoming the chief supporter of Brian Ua Neill's bid to revive the high kingship of Ireland. His byname na nGall comes from his marriage in 1259 to a daughter of Dubhghall mac Ruaidri King of the Hebrides which brought him 160 gallowglass commanded by Dubhghall's younger brother Ailéan as a dowry.
Brian Luighneach Ua Conchobhair was a prince of Connacht.
The term Kingship of Tara was a title of authority in ancient Ireland - the title is closely associated with the archaeological complex at the Hill of Tara. The position was considered to be of eminent authority in medieval Irish literature and Irish mythology, although national kingship was never a historical reality in early Ireland. The term also represented a prehistoric and mythical ideal of sacred kingship in Ireland. Holding the title King of Tara invested the incumbent with a powerful status. Many Irish High Kings were simultaneously Kings of Tara. The title emerged in the ninth and tenth centuries. In later times, actual claimants to this title used their position to promote themselves in status and fact to the High Kingship. Prior to this, various branches of the Uí Néill dynasty appear to have used it to denote overlordship of their kindred and realms. It was associated with Feis Temro, a pagan inauguration rite.
Events from the year 1333 in Ireland.
Events from the year 1310 in Ireland.
Events from the year 1334 in Ireland.
Uí Díarmata was a local kingdom located in what is now north County Galway.
Muireadhach Ua Dubhthaigh was an Archbishop of Connacht, in Ireland.
Aedh Dall Ua Conchobair, Prince of Connacht, died 1194.
Aed mac Donn Ó Sochlachain was Erenagh of Cong and an Irish musician.
Amhlaeibh Mac Innaighneorach, Chief Harper of Ireland, died 1168.
Finn Ó Haughluinn, Irish musician, died 1490.
Aed Ó Finn was a 13th century Irish musician. His obituary, sub anno 1269, records that he was a "master of music and minstrelsy".
Mael Sechlainn Mac Carmaic, Irish musician, died 1330.
Donnchad Clereach Ó Maol Braonáin, Irish cleric and musician, died 1343.
Gilla na Naem Ó Conmaigh, Irish musician, died 1360.
Muiris Ó Gibealláin, Irish jurist, singer, philosopher, poet and musician, died 1328.
The Kings of Ui Fiachrach Muaidhe were the northern branch of Ui Fiachrach, based on the plain of the Muaidhe.
Gilla Duibin Mac Cruitín, Irish musician, died 1405.
Naisse mac Cithruadh, Irish musician, died 1561.
None of Buckley's papers, given as sources, mention Ferdomhnach, Ferdomnach, cruitirechta (although there is some discussion of the cruit in "Musical Instruments"),leiginn, or lectors. I was unable to find a reference on the Irish Harp site for any of these keywords.