Carlisle Castle is a stone keep medieval fortress located in the city of Carlisle near the ruins of Hadrian's Wall. First built during the reign of William II in 1092 and rebuilt in stone under Henry I in 1122, the castle is over 930 years old and has been the scene of many episodes in British history. This Castle played an extremely important part in the wars between England and Scotland (the Wars of Scottish Independence). It has been the centre of many wars and invasions. During the Jacobite Rising of 1745–1746, Carlisle became the last English fortress to undergo a siege. The castle was listed as a Scheduled Ancient Monument on 7 August 1996. Today the property is managed by English Heritage and is open to the public. Until 2006, the castle was the administrative headquarters of the former King's Own Royal Border Regiment and until 2019 it was the county headquarters to the Duke of Lancaster's Regiment. A museum to the regiment is within the castle walls.
