She recorded her thoughts on tape
Much of what we know about Princess Diana’s personal life is thanks to audiotapes she recorded herself. Once she recognized her marriage to Prince Charles was falling apart, she documented her side of the story on a tape recorder and gave the tapes to her close friend, Dr. James Colthurst. He, in turn, gave them to journalist Andrew Morton so her words could get out to the public. From those tapes, Morton published the biography DIANA: Her True Story—In Her Own Words in 1992. No one knew Diana had a hand in the book’s production until after her death, just one of the surprising facts you probably didn’t know about Princess Diana.
Her sister dated Prince Charles
There are definitely ways to improve your relationship with your sibling, but we’re not sure if sharing a boyfriend is one of them. Before Diana and Charles started going steady, he dated her sister, Sarah. She introduced the two when Diana was just 16 and takes credit for their falling in love, calling herself Cupid.
Her grandmother worked for the Queen
As prominent a public figure as Queen Elizabeth is, there’s still a lot that the public doesn’t know about her. One of those more intriguing bits of trivia is that the Queen Elizabeth The Queen Mother was close friends with Princess Diana’s grandmother, Ruth Fermoy. She was one of Her Majesty’s ladies-in-waiting and later held the title Woman of the Bedchamber, which meant that she was the Queen’s right-hand woman and assisted with important social engagements.