Maonacan of Athleague

Saint Maonacan, otherwise Manchan (, , fl. A.D. 500) of Athleague (, "the stony-ford of St. Manchan" or "ford of flagstones", ), was an early Irish Christian saint. He founded a church in Athleague, in county Roscommon. Saint Manchan's feast day is celebrated on February 18 (February 7 in the Old Calendar), by Roman Catholics, and Anglicans. The life of Manchan of Athleague is obscured because many persons named Manchan are to be found among the monastically-inclined medieval Irish Christians.
Life.
Nothing is known about the life of "Manchán of Athleague". The period of this saint is unknown. He founded an early Christian monastery of Athleague, in county Roscommon. Moran (2010), provides the following local perspective:-
The sanctity of "Manchán of Athleague" is first recorded in the "Annals of the Four Masters" which records "A.D. 1493, .. ()"", which confirms he was patron saint of Athleague, in County Roscommon. The "Martyrology of Donegal" records the Saint as ", Maonacan, of Ath-liacc", while "The martyrology of Gorman" notes ""Moenucan, of Ath liacc, Feb. 7. ".
The multiplicity of Saints called "Maenucan", "Maonacan", "Moenagain" is because the name is a diminutive of , a monk, so the real names of each recorded "Saint Manchan" are unknown. Saint Manchan of Athleague was contemporary with the Twelve Apostles of Ireland, and Manchan of Mohill, as the establishment of the early Christian site of Athleague is given as c. A.D. 500. The Annals of the Four Masters calls Athleague the medieval names of- ", and ".
Church.
The Irish Annals has the following entries for the "church of Atha Liacc"-