Lady Sibell Mary Lumley

Sibell married Victor Alexander Grosvenor Earl Grosvenor, son of Hugh Lupus Grosvenor 1st. Duke of Westminster and Lady Constance Gertrude Leveson-Gower, on 3 Nov 1874. (Victor Alexander Grosvenor Earl Grosvenor was born on 28 Apr 1853 and died on 22 Jan 1884.)

Sibell next married Rt. Hon. George Wyndham P.C., son of Hon. Percy Scawen Wyndham and Madeline Caroline Frances Eden Campbell, on 7 Feb 1887. (Rt. Hon. George Wyndham P.C. was born on 29 Aug 1863 and died on 8 Jun 1913.)