Prince Charles and Princess Diana
Prince Charles and Princess Diana are pictured at an official event during their first royal Australian tour 1983 in Newcastle, Australia. Patrick Riviere/Getty Images

When Princess Diana married Prince Charles, she believed they would have a fairytale romance. However, following their 1981 wedding, their honeymoon trip to Queen Elizabeth’s Balmoral estate made her she realize her marriage to the Prince of Wales wouldn’t be as romantic as she expected.

In the 2017 book, “The Duchess: The Untold Story,” author Penny Junor claimed Princess Diana may have been lying when she told the press she had a “lovely” time at the Balmoral residence. Instead, the royal biographer implied “nothing could be further from the truth.”

“It was a disaster, and only served to highlight how little they had in common,” Junor wrote.

During their stay at the royal estate, Diana was allegedly miserable. “She hated the countryside, hated his family’s passion for horses and dogs, hated the rain that poured down remorselessly; and she felt that her husband was avoiding intimate contact,” the author explained.

Prince Charles would often leave his new wife alone, which eventually backfired. During their honeymoon, Charles tasked his secretary, Michael Colborne to stay with Diana while he went off to explore the estate grounds.

“There followed the most shocking, distressing and draining days of Michael’s life,” Junor wrote.

“For six solid hours, with no distraction beyond a plate of sandwiches at lunchtime, he sat there while Diana cried, paced around the room, kicked the furniture, ranted about everyone and everything to do with the place she hated so much, and then fell into brooding silence before starting all over again,” Junor added.

“Charles was mystified and despondent. He didn’t know what had gone wrong or how he was going to cope.”

Princess Diana and Prince Charles finalized their divorce in 1996. He eventually went on to marry Camilla Parker Bowles, who is now the Duchess of Cornwall.