Elizabeth Keppel was the illegitimate daughter of Admiral Augustus Keppel, first and last Viscount Keppel of Elveden (1725-1786). In 1787 she married Captain Thomas Meyrick of the 66th Regiment. Sir Joshua Reynolds painted portraits of Miss Keppel (now in the Ashmolean Museum, inv. no. A192) and her father (Tate Britain, inv. no. N00886), who was a friend of the artist. According to the Ashmolean Museum's Complete Illustrated Catalogue of Paintings, Miss Keppel sat for Reynolds fifteen times between 22 May and 12 December 1782. The portrait cost 50 guineas.