() was an Irish scribe of the ÃÂ Cuindlis family of brehons and scholars. Other renderings of his name have or , and sometimes .
He was said to be a native of Bally Lough Deacker (today called Ballaghdacker, in Irish , in the parish of Athleague, which straddles north Galway and south Roscommon). was one of the scribes of the ('Great Book of Lecan'), 1397âÂÂ1418, under the guidance of Giolla ÃÂosa Mor mac Donnchadh MacFhirbhisigh. He was later the scribe of An Leabhar Breac ('The Speckled Book') at Duniry, 1408âÂÂ1411; it is the largest Irish-language vellum manuscript attributed to a single scribe. He is also credited with a third work, c. 1400, known as ('The Red Book of Munster') or ('The Red Book'), a genealogical work from which material was copied in 1621 by MÃÂcheál àCléirigh at Quin Friary, possibly examined in the 1630s by Antonius Bruodinus at the library of Moynoe, and last seen (by àCléirigh again) on 30 June 1634 at a convent in Thomond (County Limerick). It is not to be confused with the much later ('The Book of Munster') or various other manuscripts called Red Book.