[8] The monastery was governed by the bishop, abbot, and a uniquely Irish "erenagh", power being exercised by one person, or perhaps combined in practical permutations.

[9] The Annals also records a military invasion of Muintir Eolais in March 1590, when the local Túaths were defeated and Mohill Priory was forfeited to the English crown.

[49][50][n 11] Barret's parcel subsequently passing to an englishman named John Crofton c. 1594,[15] who bequeathed same to his son Henry by a deed dated 2 June 1607.

A bad time it was for priests and papists" Confederate Ireland rule was established c. 1642 – c. 1649, and during the Eleven Years' War the Priory of Mohill was re-established in some manner.

In 1666, four Reynolds priests (James, Loghlin, Richard, Walter) are among "forty nine Catholics from hiding places in the woods" in County Roscommon, who signed a letter in support of the Pope and protesting the loss of their 'due liberties'.

[54] And in 1713 an elderly Father Connor Reynolds "of Jamestown in the county of Leitrim" who had been exiled in Spain since 1681, was captured hiding in a trunk on a fishing boat arriving at Dungarvan port and imprisoned at Waterford jail.

[55] Today nothing survives of the early ecclesiastical site here,[56] except for an inaccessible old school-house, and the base of a round tower located near the old persons home in the town.

The remains of the abbey or sanctuary forms the south, and east, walls of the Hyde family vault in the graveyard of 'Saint Mary's church' later built on the Priory ruins.