Diana, Princess of Wales
Charles and Diana separated in 1992, and divorced in 1996. Diana said Camilla Parker-Bowles was responsible for the problems with her marriage. Diana was the first Englishwoman to marry an heir to the British throne in 300 years.  Charles' brothers married commoners: Andrew, Duke of York, married Sarah Ferguson in 1986, and his youngest brother, Edward, Earl of Wessex, married Sophie Rhys-Jones in 1999.