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 Lorraine Dorothea of Lorraine Dorothea of Lorraine (24 May 1545 – 2 June 1621), was by birth a member of the House of Lorraine and by marriage to Eric II, Duke of Brunswick-Lüneburg, Duchess of Brunswick-Lüneburg-Calenburg. Born at the Château de Deneuvre, she was the third child and second daughter of Francis I, Duke of Lorraine and Christina of Denmark. Her paternal grandparents were Antoine, Duke of Lorraine and Renée of Bourbon-Montpensier and her maternal grandparents were Christian II of Denmark and Isabella of Austria. Dorothea was named after her maternal aunt and she was born crippled or lame, which was