Diana Spencer married Prince Charles in 1981, becoming Her Royal Highness (HRH) The Princess of Wales.

A year and three days later, as stated byroyal.uk,Diana was involved in a fatal car accident.

When Diana and Charles divorced she was still considered to be a part of the royal family.

Prince William smiling

Diana still shared parenting responsibilities with her ex-husband and maintained her residence at Kensington Palace.

But she did give up many of her patronages, as well as her honorary military titles.

But Prince Charles did not want that.

Prince William and Princess Diana

Paul Burrell, Diana’s butler and friend, wrote a book called “A Royal Duty.”

Burrell shared that this statement brought Diana to tears.

Even more heartbreaking is that this promise could never be carried out, due toher deatha year later.