Sophia FitzClarence

Born Sophia FitzClarence, called Sophy. She was granted the rank of a marquess’ daughter after her father ascended to the throne.

Illegitimate daughter of Prince William, Duke of Gloucester, the future King William IV. of the United Kingdom (1765-1837) and the actress Dorothea Bland, called Mrs. Jordan (1761-1815)

Born: Somerset Street, London 4 March 1795

Named for her aunt, Princess Sophia of the United Kingdom

Married: Charles Street, Berkeley Square, Middlesex 13. Aug 1825 Philip Sidney, 1st Baron De L’Isle and Dudley (1800-1851), son of Sir John Shelley-Sidney, 1st Bt (1771-1849) by his wife Henrietta Hunloke (d. 1811)

Issue:

• Hon. Adelaide Sidney (1826-1904) m.1856 Hon. Frederick FitzClarence (1826-1878), her first cousin

• Philip Sidney, 2nd Baron De L’Isle and Dudley (1828-1898) m.1850 Mary Foulis (d.1891); m.1893 Frances Ramsay (d.1926)

• Robert Sidney (20. Sep 1829-17. Apr 1830)

• Elizabeth Sidney (15. Feb 1831-28. Aug 1831)

• Hon. Ernestine Sidney (1834-1910) m.1868 Philip Perceval (1813-1897)

• Hon. Sophia Sidney (1837-1907) m.1871 Alexander Graf Kielmansegg (1833-1914)

Died: Kensington Palace, London 10. Apr 1837 in childbirth

Buried: Penshurst

Source: Detlev Schwennicke "Europäische Stammtafeln. Neue Folgen", Vol. III/2, 1983, J.A. Stargardt; Burke’s Peerage and Baronetage, online version; Claire Tomalin “Mrs Jordan’s profession“ Penguin, London 1995; Anthony Camp ”Royal Mistresses and Bastards. Fact and Fiction 1714-1936”, London 2007