century, the caves themselves may date to the 11th century and could have been the site of the brewhouse for the castle. Nottingham Castle Nottingham Castle, founded by William the Conqueror, famed through the Middle Ages as one of the country's finest strongholds, and where Charles I raised the Royal Standard in 1642 no longer exists, and has been replaced by a classical ducal palace. Of the mediæval castle only the (restored) gatehouse, and the ruined remains of some walls/foundations survive. See also Timeline of Nottingham References Bibliography Further reading Published in the 19th century Published in the 20th century Chambers, J. D. "Nottingham"History Today''(Oct 1951) 1#10 pp 40–48. Published in the 21st century