Investigative journalist Tom Bower's explosive book 'Revenge: Meghan, Harry and the War between the Windsors' was released earlier this year and saw him unpick the truth behind the Sussexes by speaking to 80 people who know the couple personally.
Countless earth-shattering claims were made by the author, from how Meghan failed to get on with Harry's friends to the changes the palace forced the writers of Suits to make after the couple's relationship became public knowledge. However, one of the most interesting remarks came from the late Queen's Lady-in-Waiting, Lady Susan Hussey when she offered her view on Harry and Meghan's relationship ahead of their wedding in 2018.
Lady Susan is said to have made the comment a few months before the couple married at a lunch with a group of theatre executives.
Bower wrote: "While discussing the possibility that Meghan might become linked with the National Theatre after the wedding, Hussey became unexpectedly serious about the couple’s future. 'That will all end in tears,' she is alleged to have warned. 'Mark my words.'"
Lady Susan was a treasured member of the late Queen's inner circle and was widely considered to be one of her dearest friends.
When Prince William was born in 1982, the-then Prince and Princess of Wales chose to honour Lady Susan by making her one of William's godmothers.
Those also included in the line-up were King Constantine II of Greece, Princess Alexandra, The Duchess of Westminster, Norton Knatchbull, 3rd Earl Mountbatten of Burma and King Charles' mentor, Sir Laurens van der Post.
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Lady Susan was a long serving lady-in-waiting to Her Majesty but originally joined the Royal Household in 1960 as someone to help answer letters. She quickly rose through the ranks and became one of The Queen's closest friends.
Lady Susan is the youngest daughter of the 12th Earl and Countess of Waldegrave and was married to BBC Chairman of the Board of Governors, Marmaduke Hussey, from 1959 to 2006.
Already Dame Commander of the Royal Victorian Order, she was promoted to Dame Grand Cross of the Royal Victorian Order in 2013.
Lady Susan was also been honoured with the Queen Elizabeth II Royal Household Long and Faithful Service Medal and holds the 30, 40, 50 and 60-year bars.
The Queen personally asked Lady Susan to sit next to her in her car as she arrived at Prince Philip's funeral in April. She was most recently pictured attending the Queen's state funeral service at Westminster Abbey on September 19.
Following the monarch's death, it is expected that many of the Ladies-in-Waiting will soon retire as they are already in their 80s. While the late Queen had a number of close friends in the prestigious role, it has been predicted that the new Queen will not follow in her mother-in-law's footsteps.
Royal historian Marlene Koenig explained to the Express : "There are some positions that may no longer be filled. You wonder if the women, especially Queen Camilla, will use ladies-in-waiting as the Queen did.
She's never had, even as the Duchess of Cornwall, an official lady-in-waiting." In terms of an aide to help with her official duties, Camilla had her former secretary, Angela MacManus, to help - but she was never referred to as a Lady-in-Waiting.
Both Camilla and The Princess of Wales were asked if they would like to appoint ladies of their own when they married into the Royal Family, but they both opted against doing so. This modernisation is in complete contrast to the royal women of old who all used or continue to use Ladies-in-Waiting, those on the list include Diana, Princess of Wales, Princess Alexandra and the Duchess of Gloucester.