Article continues below advertisementFamed royal author Andrew Lownie isn't backing down on claims he made in the revised copy of his 2025 book, Entitled: The Rise and Fall of the House of York, about Sarah Ferguson and Sean "Diddy" Combs' reported intimate relationship."I stand by it," the biographer, 64, told The Times on Saturday, May 9. "It's fully sourced with former employees of P. Diddy and Sarah Ferguson.