As we all eagerly anticipate the Queen’s Platinum Jubilee celebration this weekend, there’s one person who will be paying particularly close attention to proceedings. Having been the butler and "best friend" of Diana, Princess of Wales for 10 years up until her death in 1997, Paul Burrell tells OK! he’s especially interested in how things pan out between the Duke of Cambridge and the Duke of Sussex, who are rumoured to have been somewhat estranged since Harry departed for America with his wife, Meghan Markle and their son Archie, three and 11-month-old daughter, Lilibet. As Diana’s close confidante and "rock", what does Paul think she would make of the apparent rift between Diana's beloved sons? "She’d be heartbroken.