She had the star status of Diana Spencer long before the advent of today's mass media. She owed it to her beauty that was portrayed by several artists. She was the sister of Elizabeth Gunning. Her Wikipedia article is here.

1748 Mary Gunning, Countess of Coventry in Turkish costume by Jean Étienne Liotard (location unknown to gogm)

1751 Maria, Countess of Coventry (1733-1760), renowned beauty by Francis Cotes (National Gallery of Ireland - Dublin Ireland)

1752 or after Maria Gunning, famous beauty; first wife of George Coventry, 6th Earl of Coventry after Francis Cotes (Grosvenor Prints)

Maria Gunning, Countess of Coventry by Hugh Douglas Hamilton (Courtauld Institute of Art, London UK)
