Mary FitzClarence
Born Mary FitzClarence, granted the rank of a marquess’ daughter after her father ascended to the throne.
Illegitimate daughter of Prince William, Duke of Gloucester, the future King William IV. of the United Kingdom (1765-1837) and the actress Dorothea Bland, called Mrs. Jordan (1761-1815)
Born: Bushy House, Hampton, Middlesex 19. Dec 1798
Married: St. George’s, Hanover Square, London 19. Jun 1824 Charles Richard Fox (1796-1873), illegitimate son of Henry Fox, 3rd Baron Holland (1773-1840) by Elizabeth Vassal (1770-1845), who later became his wife.
No issue
Died: 13. Jul 1864
Buried: Kensal Green
Source: Detlev Schwennicke "Europäische Stammtafeln. Neue Folgen", Vol. III/2, 1983, J.A. Stargardt; Burke’s Peerage and Baronetage, online version; Claire Tomalin “Mrs Jordan’s profession“ Penguin, London 1995; Anthony Camp ”Royal Mistresses and Bastards. Fact and Fiction 1714-1936”, London 2007