Secrets of the Royal Palaces

More behind-the-scenes tales of the British monarchy's residences, with Kate Williams exploring some of the more gruesome stories of palace history, including the death of Princess Charlotte in 1817. Plus, Diana, Princess of Wales's former driver Colin Tebbutt reveals what happened at her private funeral at her ancestral home of Althorp, Northamptonshire.

The story of how William III's plans to knock down Hampton Court were scuppered when he became caught up in an expensive nine-year war with Louis XIV of France. Kate Williams explores more gruesome stories of palace history, including how St James's Palace doctors killed their queen, why a young African prince is buried in Windsor, and how Queen Anne had two confidantes, possibly lovers, fighting over her.

A look around former French royal residence the Palace of Versailles, while Kate Williams tells more gruesome tales from royal history, including how Henry VIII changed the law so he could execute an insane person. Colin Tebbutt reveals what happened in the hospital on the night of Diana, Princess of Wales's car accident, and how he had to protect her body from the press.

A network of tunnels built by George IV underneath Brighton's Royal Pavilion as he had grown so fat that he was embarrassed by his appearance and wanted to visit his beloved horses unobserved by cruel critics. Plus, the story behind the Diana, Princess of Wales statue in Kensington Palace and how this piece of art ended up demonstrating the fractured relationship of her two sons.

Kate Williams explores the deaths of the Princes in the Tower, when the boys who were first and second in line to throne disappeared, allowing their uncle Richard III to seize power and become king. Photographer John Swannell talks about an ad hoc 1994 photoshoot with Diana, Princess of Wales, and her sons.

A look at the christening of Princess Charlotte in 2015, revealing how Prince William paid touching tribute to his mother in his choice of venue and name, and that the `antique" christening dress used was secretly a tea-stained replica. Kate Williams examines gruesome stories of the palaces, including Queen Mary's phantom pregnancy and a misinformed sugar craze in Tudor England that resulted in some serious dental decay in the court of Elizabeth I.

The lost palace of Whitehall, destroyed by fire in 1698; a couple who invited the queen to their wedding in 2012; motivations behind one of the biggest Tudor parties in history.

The development of Buckingham Palace over the past 100 years; hidden messages in the dress worn by the Duchess of Cambridge at the premiere of "No Time to Die"; the dark secrets of Queen Isabella.