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    1. Celebrity
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    Prince Philip "Wasn't Fooled" By One of Diana's Claims and Was Proven Right After Her Death, Says Royal Author

    “Feeling that too much had been revealed, he was not impressed.”

    Kristin Contino's avatar
    By Kristin Contino
    Published 31 March 2026 In News

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    Princess Diana wearing a white polka dot dress and hat looking sullen next to Prince Philip at the Epsom Derby
    (Image credit: Getty Images)
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    As Princess Diana struggled with her position in the Royal Family, she revealed intimate details about her life to biographer Andrew Morton. This series of audio tapes shared with the author formed the basis of his bestselling 1992 book, Diana: Her True Story, which was released just six months before Diana and Charles announced their separation. At the time, Princess Diana denied collaborating with Morton, but there was one member of the Royal Family who didn’t buy it.

    In his new biography of the late Queen—serialized in the Daily Mail this week—Hugo Vickers explored how Queen Elizabeth and Prince Philip reacted to the breakdown of their eldest son’s marriage. When it came to the release of Morton's tell-all, Vickers wrote that “it seems almost incredible that so many people accepted Diana’s denial of any involvement in the book.”

    However, he continued that Diana’s father-in-law was convinced she had authorized the biography. “One person who wasn’t fooled, though, was Prince Philip, who read the book on flights to and from Canada in July and clearly detected her hand in it,” Vickers wrote. “Feeling that too much had been revealed, he was not impressed.”

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    Prince Charles and Princess Diana are pictured with Prince Philip on their wedding day.

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    Princess Diana wearing a white dress with black polka dots standing in front of Prince Philip

    Princess Diana and Prince Philip are pictured at the 1986 Epsom Derby.

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    Diana and Charles then held “a sticky meeting at Windsor” with Queen Elizabeth and Prince Philip to discuss the state of their relationship, with Vickers writing that the late Queen “maintained her neutrality.” But Prince Philip wrote Diana a series of letters between June and October 1992 in hopes that his son’s marriage could be saved.

    In the letters, which Vickers has read, Philip offered counsel to the struggling princess, and she replied to one that “it was clear that he ‘really cared.’” However, Prince Philip became concerned after he saw “one or two phrases from his correspondence with Diana popping up in the press.”

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    “This made him worry that every time there was a private discussion between Charles and Diana, details would appear in the Daily Mail,” Vickers wrote.

    Although Princess Diana denied collaborating with Morton, the biographer eventually revealed that he had, in fact, received audio tapes from the princess. “Within a month of Diana’s death, Andrew Morton exposed to the world the full extent of her cooperation with his book,” Vickers wrote, adding, “Prince Philip had been right all along.”

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    Prince Philip Diana Prince Charles Queen Elizabeth II
    Kristin Contino
    Kristin Contino
    Senior Royal and Celebrity Editor

    Kristin Contino is Marie Claire's Senior Royal and Celebrity editor. She's been covering royalty since 2018—including major moments such as the Platinum Jubilee, Queen Elizabeth II’s death and King Charles III's coronation—and places a particular focus on the British Royal Family's style and what it means.

    Prior to working at Marie Claire, she wrote about celebrity and royal fashion at Page Six Style and covered royalty from around the world as chief reporter at Royal Central. Kristin has provided expert commentary for outlets including the BBC, Sky News, US Weekly, the Today Show and many others.

    Kristin is also the published author of two novels, “The Legacy of Us” and “A House Full of Windsor.” She's passionate about travel, history, horses, and learning everything she can about her favorite city in the world, London.

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