Since the 12th century, Carlisle Castle has been in almost continuous military use, making it unusual among medieval castles. It has withstood many sieges, contained a valuable royal prisoner, and been home to the King's Own Royal Border Regiment. With such a long history, change and adaptation have been an important part of the castle’s story, with each significant structure built or modified in response to specific events or military requirements. As a border stronghold, the castle has also often played a key role in national events.

 

It is also reputed to be haunted. In 1842, the apparition of a female is alleged to have approached a sentry on duty here during the early hours of the morning. He challenged the figure, but receiving no response, he charged her with his fixed bayonet. The figure simply melted away. It is said that after informing his fellow soldiers of what happened he died from the shock!

The Cavern Cafe now occupies what was the Citadel Restaurant referred to by Guy Lyon Playfair.

 

It is also reputed to be haunted. In 1842, the apparition of a female is alleged to have approached a sentry on duty here during the early hours of the morning. He challenged the figure, but receiving no response, he charged her with his fixed bayonet. The figure simply melted away. It is said that after informing his fellow soldiers of what happened he died from the shock!