Mary FoxLady Mary Fox (19 December 1798 – 13 July 1864) was King William IV of the United Kingdom's illegitimate daughter by his mistress Dorothea Jordan. She went on to become a writer later in life. Mary FitzClarence was the fourth child and second daughte of Prince William, Duke of Clarence and St Andrews, and actress Dorothea Jordan, and was born in Bushy House. She has been described as "a fine looking, brown girl with a pleasant countenance and manners”. Charles Richard Fox, the eldest but illegitimate son of Lord Holland and Lady Webster, subsequently Lady Holland, courted her younger sister Elizabeth in 1820. His parents did not approve of the match, but they later approved of his relationship with Mary four years later. On June 19, 1824, the couple married in St George's, Hanover Square, London. Lady Holland was concerned that she may be "a sickly subject" and desired that her mother's "roturier blood might have mitigated the royal constitutions." On August 31, her mother-in-law wrote that her son, "though fond of her, he only considers her as an auxiliary to his medals and other possessions, not as a principal," but that "it will all do well; as she is very winning, and very firm, and sincerely fond of him." By 1827, the couple had made their home in Little Holland House. Read More Read Less