Dating back to circa 1411, it is the only remaining castle of the Tyrrells who came to Ireland around the time of the Norman Invasion.
The castle is approximately 20 metres high and follows the general pattern of tower houses: stone-built, essentially defensive and comprising a series of superimposed chambers.
[2] Tyrrellspass is the modern name for Fartullagh,[citation needed] where in 1597 Captain Richard Tyrrell, a chief ally of Hugh O'Neill in the Nine Years' War, won a major victory against English crown forces in what has become known as the Battle of Tyrrellspass.
[3] During the Cromwellian invasion of 1650, it is said the castle occupants suffered a great deal and many were executed.
[citation needed] After a tumultuous history of intrusion, the castle was extensively restored by Phillip Ginnell[who?]