A cousin of Samantha Cameron, the wife of former Prime Minister David Cameron, Davina Sheffield was exactly the sort of glamorous, blue-blooded girlfriend Charles was after, being the beautiful blonde granddaughter of wealthy industrialist Lord McGowan. Initially resisting his advances due to her interest in power boat racer James Beard, she finally relented due to his persistence. Their romance only ended after the press discovered (via Beard) that Sheffield wasn’t a virgin – an archaic stipulation for any future royal bride at the time.