Born: April 21, 1785, Paris, France
Died: September 1, 1870 (age 85 years), Paris, France
Great grandchildren: Evelyn Cavendish, Duchess of Devonshire, Lord Charles Fitzmaurice, Giles Stephen Fitzmaurice Digby, and more
Grandchildren: Henry Petty-Fitzmaurice, 5th Marquess of Lansdowne, Mathilde de Morny, Louise Le Hon, and more
Partner: Margaret Mercer Elphinstone (1817–)