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
Sophia Dorothea of Celle his wife. Sophia Dorothea was frequently scolded for her lack of etiquette, and the two had loud and bitter arguments. Things seemed better after the birth of their first two children: But George Louis acquired a mistress, Melusine von der Schulenburg, and started pointedly neglecting his wife. His parents asked him to be more circumspect with his mistress, fearful that a disruption in the marriage would disrupt the payment of the 100,000 thalers. George Louis and Sophia Dorothea became estranged—George preferred the company of his mistress, Melusine von der Schulenburg, and Sophia Dorothea, meanwhile, had her own romance with the