. "A portrait miniature is a miniature portrait painting, usually executed in gouache, watercolour, or enamel. Portrait miniatures developed out of the techniques of the miniatures in illuminated manuscripts, and were popular among 16th-century elites, mainly in England and France, and spread across the rest of Europe from the middle of the 18th-century, remaining highly popular until the development of daguerreotypes and photography in the mid-19th century."@en . .