Lady Theresa Susey Helen Vane-Tempest-Stewart, Marchioness of Londonderry (1856 - 1919), circa 1875. She was born Theresa Chetwynd-Talbot, and married the 6th Marquess of Londonderry in 1875. (Photo by W. and D. Downey/Hulton Archive/Getty Images)
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Hulton Archive W. and D. Downey