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 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.