Urquhart Castle (; ) is a ruined castle that sits beside Loch Ness in the Highlands of Scotland. The castle is on the A82 road, south-west of Inverness and east of the village of Drumnadrochit. The present ruins date from the 13th to the 16th centuries, though built on the site of an early medieval fortification. Founded in the 13th century, Urquhart played a role in the Wars of Scottish Independence in the 14th century. It was subsequently held as a royal castle and was raided on several occasions by the MacDonald Earls of Ross. The castle was granted to the Clan Grant in 1509, though conflict with the MacDonalds continued. Despite a series of further raids the castle was strengthened, only to be largely abandoned by the middle of the 17th century. Urquhart was partially destroyed in 1692 to prevent its use by Jacobite forces, and subsequently decayed. In the 20th century, it was placed in state care as a scheduled monument and opened to the public: it is now one of the most-visited castles in Scotland and received 547,518 visitors in 2019. The castle, situated on a headland overlooking Loch Ness, is one of the largest in Scotland in area. It was approached from the west and defended by a ditch and drawbridge. The buildings of the castle were laid out around two main enclosures on the shore. The northern enclosure or Nether Bailey includes most of the more intact structures, including the gatehouse, and the five-story Grant Tower at the north end of the castle. The southern enclosure or Upper Bailey, sited on higher ground, comprises the scant remains of earlier buildings. History Early Middle Ages The name Urquhart derives from the 7th-century form , itself a mix of the Old Irish (point or promontory) and Old Welsh (thicket or wood). Pieces of vitrified stone, subjected to intense heat and characteristic of early medieval fortification, had been discovered at Urquhart from the early 20th century. Speculation that Urquhart may have been the fortress of Bridei son of Maelchon, king of the northern Picts, led Professor Leslie Alcock to undertake excavations in 1983. Adomnán's Life of Columba records that St. Columba visited Bridei some time between 562 and 586, though little geographical detail is given. Adomnán also relates that during the visit, Columba converted a Pictish nobleman named Emchath, who was on his deathbed, his son Virolec, and