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Charles William Vane-Stewart, 3rd Marquess of Londonderry (1778-1854), Soldier and diplomat

Sitter associated with 35 portraits
General and diplomat; one of the foremost participants in the Napoleonic War and its political aftermath. As a dashing cavalry officer Stewart acted as Wellington's Adjutant-General, 1809-12, distinguishing himself at the Douro, Talavera and Badajoz. As Ambassador to Vienna, 1814-23, he assisted his half-brother, Lord Castlereagh, and afterwards Wellington, in the peace negotiations.