Tim Graham Photo Library via Getty Images
6. Camilla And Her Son, 1998
This 1998 photo shows Camilla with her son, Tom Parker Bowles.

Of course, we all know that Charles and Diana married in 1981 and had two sons, Prince William and Prince Harry. Whether Camilla and Charles' affair continued though the whole of the marriage is impossible to know.

What we do know is that in 1994, Charles admitted to resuming his affair with Camilla in 1986, stating that the marriage had irretrievably broken down by that time. But the world already knew that. In 1992, the book Diana: Her True Story was published, and in 1993, the "Camillagate" tapes were published, both of which exposed the affair.