The great hall was the most important part of any castle or manor during the Middle Ages. It was in the great hall that the lord ate with his family and servants on special occasions. It was used as a court for solving disputes and judging criminals as well as a place for any other gatherings where a large space was needed. And it was also the room where just about everyone, except the most important people, slept. It was one big dormitory, but without any beds. They all slept on the floor.

The Great Hall at Nottingham Castle was built in 1180 for Henry II at a cost of £250 (a huge sum in those days). It was a substantial building with aisles like a church, large enough for meetings of the King's Council of Barons, for the holding of Parliaments and for entertainment.