Charlemont Fort

Charlemont Fort stands beside the River Blackwater in County Armagh. Built in 1602 by Lord Mountjoy, the earthwork and stone defences once commanded a wide bend of the river. The name Charlemont came from Charles Blount, whose descendants took the same title. A garrison of 150 men under Sir Toby Caulfield guarded the crossing. The fort’s position made it one of the few modern fortresses in 17th-century Ireland. Its strategic value showed during the Irish Confederate Wars. Felim O’Neill captured the fort in 1641 by using a dinner invitation to gain entry. The Ulster army held it for years until Charles Coote retook it in late 1650 at heavy cost. Later, in the Williamite War, Teague O’Reagan’s Jacobite garrison surrendered in April 1690 through lack of supplies. After 1858 the fort was abandoned and finally destroyed by fire in 1920. Today only the gatehouse remains from the original works. The ruins overlook the Blackwater, a quiet reminder of past sieges and changing hands. The gatehouse is the last standing fragment of a once-formidable stronghold. Visitors see the river’s curve and the low earthworks that once bristled with guns. The site offers a view of the landscape that decided its military importance.