The life of Harriet Spencer, Countess of Bessborough, was one of both respectability and high scandal. The aristocracy of the eighteenth century were the A-list celebrities of the day; their lives, loves, fashions and misfortunes avidly reported in the press. They dominated the political world as well as the social, and Harriet was at the very heart of this powerful clique. She was born into the wealth and privilege of the Spencer family - and was the great-great-great-aunt of Diana, Princess of Wales. Following in the train of her sister, the charismatic Georgiana, Duchess of Devonshire,...