She was the daughter of Amabel Grey and she was also a Baroness, Countess, and Marchioness. Her article in thepeerage is here, right above her mother's article.
From nttreasurehunt.wordpress.com/2012/03/30. Photo - Roy Fox.
Lady jemima's dress has a number of retro features - the broad lace collars, rosette, broad bodice tabs, and puffed sleeves ending in ruffled cuffs. This may be one of Allan Ramsay's earlier works.
Keywords: Ramsay, Fox - Roy, Jemima Campbell-Yorke, Campbell family, Yorke family, British, curly coiffure, headdress, partlet, vee neckline, collar, lace, laced bodice, square décolletage, elbow length puffed sleeves, cuffs, ruffles, vee waistline, peplum, full skirt