Sibell married Victor Alexander Grosvenor, Earl Grosvenor on 3 Nov 1874 in Sandbeck Park, Maltby, Yorkshire, England. Victor (son of Hugh Lupus Grosvenor, 1st. Duke of Westminster and Lady Constance Gertrude Leveson-Gower) was born on 28 Apr 1853 in London, England; died on 22 Jan 1884 in Saighton Grange, Saighton, Cheshire, England; was buried on 25 Jan 1884 in St. Mary the Virgin, Eccleston, Cheshire, England. [Group Sheet]

1. Hugh Richard Arthur Grosvenor, G.C.V.O., D.S.O., 2nd. Duke of Westminster was born on 19 Mar 1879 in Chester District, Cheshire, England; was christened on 20 Apr 1879 in St. Mary the Virgin, Eccleston, Cheshire, England; died on 19 Jul 1953 in Lochmore, Sutherlandshire, Scotland; was buried on 23 Jul 1953 in St. Mary the Virgin, Eccleston, Cheshire, England.

Sibell married Rt. Hon. George Wyndham, P.C. on 7 Feb 1887 in Chester District, Cheshire, England. George (son of Hon. Percy Scawen Wyndham and Madeline Caroline Frances Eden Campbell) was born on 29 Aug 1863 in London, England; died on 8 Jun 1913 in Paris, France; was buried in St. Mary's, East Knoyle, Wiltshire, England. [Group Sheet]

1. Lieut. Percy Lyulph Wyndham was born on 5 Dec 1887 in Bruera, Cheshire, England; was christened on 8 Jan 1888 in St. Mary's, Bruera, Cheshire, England; died on 14 Sep 1914 in Soupir, Picardy, France; was buried in La Ferte-Sous-Jarre Memorial, France.