Pierre-Joseph Redouté (1759-1840) was a botanical illustrator born into a family of painters in Saint-Hubert, Belgium. He was a beloved artist at the court of France, a professor of botany in Montpellier, a co-illustrator of Sertum Anglicum with James Sowerby, and the author of many botanical publications including Les Liliacées (1802–15) and Les Roses (1817-21). The three volumes of Les Roses were published in 30 installments.
James Sowerby (1757-1822) was a naturalist and illustrator born in London, England. He was the author and illustrator for several publications including British Mineralogy (1804-17), Exotic Mineralogy (1811-20), Mineral Conchology of Great Britain (1812-46), and his 36 volume work entitled English Botany (1790-1814). English Botany included 2,592 hand-colored plates and took him 23 years to complete.