Daughter of Randall Grosvenor, esquire, of Bellaport in Mucklestone, Shropshire, by his wife Anne Charlton, daughter of Richard Charlton, esquire, of Apley in Wellington, Shropshire, by his wife Elizabeth Mainwaring.
Descendant of Sir Stephen Longespée of King's Sutton, Northamptonshire, by his wife Emeline de Ridelisford.