Lady Emily Stewart (1789-1865) (1789–1865) Parents Frances Stewart Robert Stewart, 1st Marquess of Londonderry Children Frances Elizabeth Hardinge Emily Caroline Hardinge Charles Hardinge, 2nd Viscount Hardinge Arthur Edward Hardinge Walter James, 1st Baron Northbourne Siblings Charles Vane, 3rd Marquess of Londonderry Frances Stewart Lady Georgiana Stewart Octavia Stewart Lady Caroline Stewart Lady Selina Stewart Lady Matilda Stewart Lady Selina Stewart Robert Stewart, Viscount Castlereagh Partners John James Henry Hardinge, 1st Viscount Hardinge