Muiris mac Donnchadh Ulltach Ó Duinnshléibhe
Muiris mac Donnchadh Ulltach Ó Duinnshléibhe, aka Father Muiris Ulltach, Irish cleric, fl. 1602-1630s.
Father Muiris Ulltach had attended Aodh Ruadh Ó Domhnaill on his death-bed in Simancas Castle, Spain, with Father Muiris mac Seaán Ulltach Ó Duinnshléibhe and Archbishop of Tuam Fláithrà Ó Maol Chonaire. The Annals of the Four Masters, in their account of the incident, describe him as a poor friar of the order of St. Francis, from the convent of the monastery of Donegal, which was one of O'Donnell's fortresses.
In the 1630s both he and Muiris mac Seaán Ulltach Ó Duinnshléibhe were attached to the Franciscan convent at Bundrowes, and became acquainted with MÃcheál Ó Cléirigh, who was then compiling the Annals of the Four Masters. Father Muiris's recollections of events, including the death of Ó Domhnaill, were incorporated into the compilation.