Taken from the watercolour sketch by Sir William Ross showing Princess Clotilde with Princess Helena in 1848 (913822). Queen Victoria thought 'the sketch of little Clotilde is beautiful' (RA QVJ: 8 March 1848) and Clotilde herself 'a dear little beauty' (RA VIC/Y 93/24).

John Simpson (1811-after 1871) was trained as a porcelain painter at the Derby porcelain factory before moving to London in 1845. He soon established a practice as a miniature painter specialising in works on enamel, and fulfilled the first of many commissions for Queen Victoria in that year. He is last recorded describing himself at the end of his career as a 'photographic artist' (1871 census return); the date of his death is not known.