Lady Mary Fox Lady Mary Fox Lady Mary Fox (née FitzClarence; 19 December 1798 – 13 July 1864) was an illegitimate daughter of King William IV of the United Kingdom by his mistress Dorothea Jordan. In later life she became a writer. Mary FitzClarence was born in Bushy House as the fourth child and second daughter of the then Prince William, Duke of Clarence, and his companion Dorothea Jordan. She was "a fine looking, brown girl with a pleasant countenance and manners". In 1820, her younger sister Elizabeth was courted by Charles Richard Fox, the eldest but illegitimate son of Lord and Lady
Dorothea of Brandenburg King in January 1446, where they visited Vadstena Abbey and her dower Örebro. During this visit, she met her future antagonist Charles, Lord High Constable of Sweden. According to the chronicle "Karlskrönikan", their meeting was a good one during which presented her and her ladies-in-waiting with many gifts. The couple returned to Denmark in September. The marriage between Dorothea and Christopher was politically favorable: her father governed Christopher's German domain and was a loyal supporter and adviser. It did not result in any offspring, however, and according to Ericus Olai, the marriage was in fact not sexually active. In January