Princess Diana and Prince Charles’ marriage was not considered a happy and peaceful union. But it has been revealed that even before the Princess of Wales tied the knot with the future king, she was already fatally damaged by her experiences as a child.

The mom of two grew up without seeing both of her parents living under the same roof because they were divorced. As such, Princess Diana learned about the concept of loss and rejection at such a young age.

In the book “The Firm,” royal author Penny Junor shared details about Prince William and Prince Harry’s mom’s troubled childhood. “At 19, she was little more than a child when she first arrived, totally unprepared for the life that lay ahead and completely out of her depth,” Junor said.

“She was a romantic, an innocent, she knew nothing of life or work or relationships. The things she knew about were loss and rejection, the product of her parents’ divorce; and she had been fatally damaged by the experience. She had no self-confidence, no stability, just a desperate need to be loved and wanted; and a determination to get what she wanted,” Junor added.

Princess Diana was first introduced to Prince Charles when she was 19 years old. The two dated briefly before the future king decided to ask for the Princess of Wales’ hand in marriage.

Princess Diana and Prince Charles The Wedding of Princess Diana and Prince Charles, Photograph at Buckingham Palace, July 29, 1981. Joe Haupt/Flickr

During the early years of their union, Princess Diana knew that Prince Charles was having an affair with Camilla. And the Duchess of Cornwall also figured out a way to capture the heir to the throne’s heart even more.

Camilla once asked Princess Diana if she will join her husband at the Boxing Day shooting event years ago, and the late royal said no. Camilla realized that the yearly hunting event with the royal family was another similarity that she shared with Prince Charles.

In the documentary “Charles And Di: The Truth Behind Their Wedding,” narrator Tracy-Ann Oberman revealed that Camilla even wrote a letter to the Princess of Wales asking her to join Camilla for lunch. During the meeting, the Duchess of Cornwall made it clear that she wanted to spend time with Prince Charles at the annual event.

Prince Charles and Camilla Parker Bowles Prince Charles will be the next heir to the British throne and will make his wife, Camilla Parker Bowles, consort. A royal biographer believes that Camilla will make Charles a confident king. Chris Jackson - Pool/Getty Images