Her article in thepeerage is here.
From bbc.co.
This portrait is placed here because waistlines descended briefly around 1810. This dress also has a lace bertha. She uses the waist band to create an hour glass figure.
Keywords: Owen, Georgiana Maria Cottin, Lady Leicester, Baroness de Tabley of Tabley House, Cottin family, Leicester family, Baroness, British, curly coiffure, feathered hat, trapezoidal neckline, bertha, lace, quarter length close sleeves, waist band, bows, tight skirt, maxi-length skirt, gloves, shoes, wrap