The sitter was the daughter of Sir Richard Lloyd of Hintelsham, Suffolk. She married, firstly, Sir John Fytch-Barker, 7th Bt (1741-1766) circa 1759. A year after his death in 1767, she married Colonel the Hon. James Hamilton (1764-1804) of the Coldstream Guards. A drawing of him by Smart from the collection of the late Arthur Jaffe (1880-1954) was sold Christie's, London, 17 November 2016, lot 63 and a portrait miniature of him by Smart was offered Sotheby's, London, 6 December 2018, lot 54.