Twenty years after her tragic death, Princess Diana's relationship with Prince Charles is still a topic of conversation among people everywhere. It was no secret that they had a rocky spell which resulted in their divorce in 1996, a year before her passing.
Their troubled relationship and messy separation were subject to plenty of speculation. Despite attempts at damage control, Charles' public image never recovered especially after he admitted to being in an extramarital relationship with his mistress, Camilla.
Charles has since not publicly spoken about his marriage with the late princess but a letter has recently surfaced to reveal how the prince truly felt after the end of his union.
Just 2 days after their official separation in 1992, the Prince of Wales penned a handwritten letter to a close friend and interior designer, Dudley Poplak, to thank him for being "hugely reassuring and comforting" during an "awful" time.
The royal also added that "'It can be pretty awful having to live through all the misinterpretation and the flak" and "perhaps they will appreciate the things I try to do after I am dead."
Even during such hardship, Charles seemed optimistic that he would come out strong.
"Perhaps it is part of the test that I have to go through in order to come out the other side, having been tempered in the fire," he wrote before closing the letter and sending "countless wishes."
This isn't the first time that letters from Charles to his friends have mentioned his marriage to Diana. There's another set of letters that have been causing quite a stir.
Continue onto the next page to see what the prince wrote about Diana to former First Lady Nancy Reagan.