Theresa Susey Helen Vane-Tempest-Stewart, Marchioness of Londonderry (née Chetwynd-Talbot; 6 June 1856 – 16 March 1919) was a British socialite and political hostess. She was a leading Unionist campaigner against Irish Home Rule, serving as president of the Ulster Women's Unionist Council from 1913 to 1919. She was said to be one of the most "dominating feminine personalities" of the time and was referred to as the "Queen of Toryism" and a "highwaywoman in a tiara."
She married Charles Vane-Tempest, Viscount Castlereagh, later the 6th Marquess of Londonderry, in the private chapel of Alton Hall in 1875. They were both leading Unionist campaigners against Irish independence.[2] She was the President of the Ulster Women's Unionist Council.[3] In 1893, she organised a petition of 20,000 women from Ulster to oppose the 1893 Home Rule bill in parliament.[2]
She was considered the leading Tory hostess and entertained at the couples' houses at Wynyard Park, County Durham, Mount Stewart, County Down, Northern Ireland, and Londonderry House in London. Their guests included royalty.[4] She was said to be one of the "dominating feminine personalities" of the time.[5] She was referred to as the "Queen of Toryism" and a "highwaywoman in a tiara."[3] She was said to be more persuasive than her husband, but they were united in their interests. She was not faithful to her husband.[6]
Lord Charles Stewart Reginald Vane-Tempest-Stewart (4 December 1879 – 9 October 1899); died unmarried
Lady Londonderry was widowed in 1915 and died in 1919.[1]
In the media
At the end of 2023 the BBC launched the radio and podcast miniseries The Mystery of Mount Stewart, narrated by Kerri Quinn, about a boat that sank on Strangford Lough in April 1895. Theresa, Lady Londonderry, had lend her sailing boat, as a treat to her senior servants, which she called friends. The series tries to uncover what happened to the boat and its eight passengers that went missing.[8][9]
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