Emily Petty-Fitzmaurice, Marchioness of Lansdowne British marchioness (1819-1895) (1819–1895) Parents Charles Joseph, comte de Flahaut Margaret Mercer Elphinstone Children Edmond Fitzmaurice, 1st Baron Fitzmaurice Lady Emily FitzMaurice unknown son Petty-FitzMaurice Henry Petty-Fitzmaurice, 5th Marquess of Lansdowne Siblings Charles de Morny, Duke of Morny Sarah de Flahault Georgiana Gabrielle de Flahault Adélaïde de Flahault Clémentine de Flahault Partners Henry Petty-Fitzmaurice, 4th Marquess of Lansdowne