Marchioness of Queensbury Sibyl Montgomery
1845 - 1935 (90 years)(
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- 1 Marchioness of Queensbury Sibyl Montgomery [1] b. 28 May 1845 d. 31 Oct 1935
- + 9th Marquess of Queensbury John Sholto Douglas b. 20 Jul 1844 d. 31 Jan 1900
- + 9th Marquess of Queensbury John Sholto Douglas b. 20 Jul 1844 d. 31 Jan 1900