Castle, restored castle. Barntown Castle, tower house and castle ruins Clougheast Castle, restored castle Dungulph Castle, intact castle Enniscorthy Castle, restored castle Ferns Castle, restored castle. OPW info Ferrycarrig Castle, castle ruins Johnstown Castle, intact castle Mountgarret Castle (New Ross), castle ruins Rathlannon Castle, castle ruins Rathmacknee Castle, castle ruins Sigginstown Castle, castle ruins Slade Castle, castle ruins Tellarought Castle (New Ross), castle ruins County Wicklow Carnew Castle, Carnew. Tower house ruins, built in the late 16th century. Castle Howard Wicklow, intact castle with the addition of a 19th-century Mansion. Dunganstown Castle, Dunganstown. Remains of a large late-17th century U-plan house and early 17th century tower. Glenart Castle, Arklow. Intact castle in use as a hotel. Fassaroe Castle, Bray. Built in 1536 by 'Master Tresover'. In ruins. Kiltegan Castle, Kiltegan, intact castle Kiltimon Castle, Newcastle. C.1550, now in use as a folly. Kindlestown Castle, Delgany. Castle ruins Oldcourt Castle, Bray. Built by the Earl of Ormond in 1433. In ruins. Ormonde Castle, Arklow. Castle ruins, built in 1169 on an old Viking site and destroyed by Oliver Cromwell's army in the 17th century. Rathdown Castle. Ruined by the 17th century, very little remains. Threecastles Castle, Manor Kilbride, Blessington. Largely intact late 14th/15th-century castle marking the boundary of the Pale. The Black Castle, Wicklow Town (now ruins). In 834 AD the Vikings fortified a strategic rocky promontory at the mouth of the Vartry River in Wicklow Town. Following the Norman invasion a castle was subsequently built, now known as the Black Castle. Between 1295 and 1315 the castle was attacked and burnt down twice by the local O'Byrne Clan. Northern Ireland County Antrim County Armagh County Down County Fermanagh County Londonderry County Tyrone See also Abbeys, priories and historic houses Abbeys and priories in the Republic of Ireland Historic houses in England Historic houses in Northern Ireland Historic houses in the Republic of Ireland Historic houses in Scotland Historic houses in Wales Castles Castles in England Castles in Scotland Castles in Wales History of Ireland List of country estates in Northern Ireland List of castles in the Republic of Ireland List of abbeys and priories in Northern Ireland List of abbeys and priories in the Republic of Ireland Notes Citations References Ireland Castles in Ireland Lists of castles in the United Kingdom Lists of buildings and structures in Northern Ireland Castles Castles Ireland