- Born on May 16, 1819 in Edinburgh
- Deceased on June 25, 1895, at the age of 76 years
Parents
- Charles de Flahault (1785 - 1870), comte de Flahaut, général de division, pair de France
- Margaret Elphinstone (1788 - 1867), Baroness Keith
Family
- Married on November 1, 1843, with Henry Petty-FitzMaurice (1816 - 1866), Marquess of Lansdowne, member of parliament, issuing
Henri (1845 - 1927)- Edmund George (1846 - 1935)
- Emily (1855 - 1939)