Secrets of the Royal Palaces

Kensington Palace had always been a party palace but a gap in succession made way for foreign import George I of Hanover and his refurbishment; in 1967, Princess Margaret fled from Kensington Palace to a tropical paradise with her younger lover.

Explores Whitehall, known as London's lost royal palace that was destroyed by fire in 1698. Henry VIII first snatched the palace from Cardinal Wolsey in 1530, and set about spending the equivalent of £10 million on renovations.

Explores Buckingham Palace, known throughout the world as the headquarters of the British royal family. Set in the heart of London, it is one of the country's most recognisable palaces, but its current incarnation is only a century or so old.

Talks about the secret stories of love and marriage from within palace walls, beginning with the strange mystery of Squidgygate and Princess Diana's intimate Sandringham phone conversations with her special friend, James Gilbey.