Dan Cruickshank charts the arrival of a new style of palace that borrowed from ancient Rome and beyond, as the kings and queens of Britain demanded that architecture proclaim their right to rule, and even their divinity. From London's Banqueting House to the birth of Buckingham Palace via Kensington, Kew and a new wing at Hampton Court, the palace became like a bejewelled casket to house the monarch. But disaster was around the corner and Britain learned that a palace could transform into a prison overnight.