Alexandra Grosvenor is briefly mentioned in Tarzan Alive by Philip José Farmer as being a relative of Hugh Grosvenor, 2nd Duke of Westminister (1879-1953). The precise relationship is not stated, but one likely possibility is that she was the sister of his great-grandfather Richard Grosvenor, 2nd Marquess of Westminister (1795-1869). Alexandra married Wold Newton Family member Percy Armand Blakeney. Their daughter Marguerite Rutherford was Tarzan's maternal grandmother.

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