Emily Jane Mercer Elphinstone Petty-Fitzmaurice, Marchioness of Lansdowne and 8th Lady Nairne (née de Flahaut; 16 May 1819 – 26 June 1895) was a British peeress.Born in Edinburgh, she was the eldest daughter of the French general and statesman, Charles, Comte de Flahaut by his wife, Margaret.[3] On 1 November 1843, at the British embassy in Vienna, she married Henry Petty-Fitzmaurice, then-Earl of Shelburne.[4] They had three children: In 1863, her husband inherited his father's marquessate, whereby she became Marchioness of Lansdowne.[5] On her death at Meikleour House in 1895, the Nairne title devolved upon her eldest son.