 The Ballroom has five chandeliers and capacity for up to 500 people . It is over 100 feet ( 30 m ) long and nearly 45 feet ( 14 m ) wide . The ceiling is 42 feet ( 13 m ) high . The <unk> Room holds up to 250 people . It was the location for a banquet attended by The Prince of Wales for the BBC television series the Great British Menu . It is 60 feet ( 18 m ) long and 42 feet ( 13 m ) wide . The <unk> is named for the shape of the room has four <unk> . It is 42 feet ( 13 m ) across . It originally held an organ in the musicians gallery . In 1777 the Card Room was added . This is now used as a bar . 
