Donegal Abbey is a ruined Franciscan Priory in Donegal in Ireland. It was constructed by the O'Donnell dynasty in the fifteenth century. It is sometimes referred to as Donegal Friary.
It was built in 1474 on the orders of the leading Gaelic lord of the area, the ruler of Tyrconnell Hugh Roe O'Donnell, the First, and his wife Finola O'Brien.
In the Nine Years' War, the Abbey was used for a meeting between the rebel leadership and envoys of the Spanish King Philip II. The Abbey was the scene of fighting during the 1601 Siege of Donegal when a force led by Red Hugh O'Donnell attempted to capture the town from Crown forces led by the Gaelic warrior Niall Garve O'Donnell.
During the battle, on 10 August 1601, a fire broke out at the abbey which in turn ignited a store of gunpowder kept by Niall Garve. The resulting explosion destroyed most of the building and killed hundreds of Niall Garve's soldiers, including his brother Conn Oge O'Donnell.
The abbey was not rebuilt, and remains in ruins, but the Franciscan friars set up a new base at a refuge close to the River Drowes, near Ballyshannon.
References:The first written record of church in Danmark locality date back to the year 1291. Close to the church are several stones with a Christian text and cross inscribed. The oldest parts of the present red-brick church are from the 1300s. In the late 1400s the church was enlarged to the appearance it has today. The church has been modified both internally and externally several times, among other things after the fires in 1699 and 1889. There are lot of well-preserved mural paintings in the walls.