Camilla, seen here with then-Lady Diana, first met Prince Charles in 1970. Some say they met at a polo match, while others say they met through a mutual friend. In any case, the two shared an immediate connection, and they dated until the following year when Prince Charles joined the Royal Navy. Months later, while Prince Charles was away, Camilla started dating Andrew Parker Bowles (the queen mother's godson and the former love interest of Prince Charles's sister, Princess Anne.) While Camilla was married to Andrew, she stayed close with Prince Charles, remaining in his circle of friends and eventually engaging in an affair with him.