Enniskillen Castle

The first Enniskillen castle was built on this site by Hugh Maguire in 1428. It featured greatly in Irish rebellions against English rule in the 16th century. It was besieged by Captain John Dowdall's troops at the start of 1594 and fell on 2 February after a short siege, when the occupants were massacred after they surrendered. The castle was again under siege later that year but was relieved. The fortress finally fell to the irish in 1595. The castle remained in Irish hands until it fell to the crown's Irish ally, Niall Garve O'Donnell in the summer of 1602. Captain William Cole remodelled and refurbished the castle adding the riverside tower at the south, known as the Watergate, in 1609. The castle was remodelled as "Castle Barracks" as part of the response to a threat of a French invasion in 1796. Castle Barracks became the home of the 27th Regiment of Foot in 1853. The regiment moved to purpose-built facilities at St Lucia Barracks, Omagh in 1875 and evolved, after amalgamation, to become the Royal Inniskilling Fusiliers in 1881.

The barracks continued to be used by other regiments and, from November 1939, they became to home of the North Irish Horse, a Territorial Army unit. The barracks were decommissioned in 1950 and were converted for use as council depot. The castle was subsequently opened to the public as a heritage centre.