Royal expert Ingrid Seward, who knew Diana and whose latest book, Catherine and Diana, chronicles the lives of the Princesses of Wales, believes the battle to control Diana’s legacy will continue beyond next year’s milestone anniversary. “Having known Diana, I think she would love the idea of people remembering her forever, and that she is still being talked about,” Seward tells Vanity Fair.
But in a potential conflict of interest for Buckingham Palace, the milestone anniversary of…

