Kate Williams explores the history of Sandringham in Norfolk, which is one of the few royal residences owned personally by the Windsors. It was purchased in 1861 for the rakish Prince Edward in the hopes he would settle down in the countryside, but instead he turned it into the perfect party palace, with a bowling alley, billiards and endless hunting and shooting. The historian also reveals how Prince Philip once proposed demolishing the place to make way for a more modern replacement, before being forced to relent by the Queen Mother