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 von Salviati himself and his future children in 1933. Wilhelm and Dorothea married on 3 June 1933 in Bonn. They had two daughters who, in 1940, were accepted by the ex-Emperor as dynastic members of the House of Hohenzollern and recognised as Princess of Prussia with the style "Royal Highness". After her husband’s death on 26 May 1940 during the invasion of France, she led a quiet life and died in Bad Godesberg, Bonn on 7 May 1972. Dorothea von Salviati Dorothea von Salviati (1907–1972), was the wife of Prince Wilhelm of Prussia, the eldest son of Crown Prince Wilhelm, the eldest