Prince Philip's cousin says Princes Diana was "spiteful" and "really unkind" to Prince Charles.
Lady Pamela Hicks, 84, thinks the marriage between the Prince and Princess of Wales, who wed in 1981, was unhealthy as Diana beat his spirit and was an unsupportive wife.
She told Vanity Fair magazine: "She was really spiteful, really unkind to him - and, my God, he's a man who needs support and encouragement. [The marriage] absolutely destroyed him. He looked grey and ghost-like."
Diana and Charles - who had two sons Prince William, 31, and Harry, 28, - divorced in 1996, almost a decade later in 2005 he married Camilla Parker Bowles and has "blossomed again."
Although Pamela admits the late Diana, who was often dubbed the people's princess, had a great relationship with the public she slams the blonde beauty's attitude toward her family.
She explained: "She had enormous charisma, she was beautiful, she was very good at empathy with the general crowd ... and she had no feeling at all for her husband or his family. Quite the reverse!"
Although Diana had plenty of support from the Royal family, who even gave her the Queen's favorite lady-in-waiting, all she was interested in was "disco-ing".
She added: "She was given the Queen's favorite lady-in-waiting, Sue Hussey, to help her, to teach her. But she didn't want to be told anything.
" 'That's boring, Sue,' she'd say. Instead, she wanted to listen to her music and go disco-ing or to some jive concert.
"She didn't try. She had no need to try because she saw the people admired her, then they admired her more. She reckoned she was the star."
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