Theresa Vane-Tempest-Stewart [née Talbot] (1856-1919; ODNB), marchioness of Londonderry; m. (1875) Charles Stewart, 6th Earl of Londonderry; daughter of Charles, 19th Earl of Shrewsbury; described as 'perhaps one of the leading Conservative hostesses of the Edwardian era'; her infidelities, particularly her affair with the politician and journalist Harry Cust, placed the Londonderry's marriage under strain, although it recovered in later years.

Journal references: 63

• 31 Dec 1912
• 25 Aug 1913
• 9 Oct 1913
• 29 Nov 1913
• 20 Dec 1913
• 7 Nov 1914
• 29 Nov 1914
• 11 Dec 1914
• 8 Feb 1915
• 27 Jul 1915
• 11 Jan 1916
• 4 Apr 1916
• 15 Jun 1916
• 11 Oct 1916
• 12 Nov 1916
• 11 Dec 1916
• 25 Dec 1916
• 6 Jan 1917
• 16 Jul 1917
• 18 Jul 1917
• 17 Aug 1917
• 1 Sep 1917
• 2 Sep 1917
• 3 Sep 1917
• 29 Sep 1917
• 3 Oct 1917
• 6 Oct 1917
• 19 Oct 1917
• 11 Nov 1917
• 6 Dec 1917
• 8 Dec 1917
• 24 Dec 1917
• 25 Dec 1917
• 26 Dec 1917
• 27 Dec 1917
• 29 Dec 1917
• 6 Jan 1918
• 26 Jan 1918
• 28 Jan 1918
• 26 Feb 1918
• 10 Mar 1918
• 23 Apr 1918
• 24 Apr 1918
• 26 Apr 1918
• 27 Apr 1918
• 13 May 1918
• 22 May 1918
• 29 May 1918
• 26 Jun 1918
• 9 Jul 1918
• 22 Jul 1918
• 22 Oct 1918
• 6 Nov 1918
• 7 Nov 1918
• 8 Nov 1918
• 12 Feb 1919
• 13 Feb 1919
• 23 Feb 1919
• 25 Feb 1919
• 17 Mar 1919
• 19 Dec 1920
• 21 Jul 1921
• 27 Jan 1923

See also Vane-Tempest-Stewart, 6th marquess of Londonderry, Charles Stewart