Nikolaus Joseph Jacquin

Jacquin was born on 16 February 1727 in Leiden, in the Dutch Republic. He was educated at a Jesuit gymnasium in Antwerp, then studied philosophy at the University of Leuven and medicine at the University of Leiden, with further study in Rouen and Paris. One source credits him with a Doctor of Medicine degree from Leiden in 1752, though sources vary on exactly where his medical training concluded. He went on to Vienna, where he continued his medical studies under Gerard van Swieten and Anton de Haen.

In Vienna, Jacquin built a career spanning chemistry, medicine, and botany. He became professor of chemistry and botany at the University of Vienna and directed the university's botanical garden. His major illustrated works, including Flora Austriaca, Hortus Botanicus Vindobonensis, Icones Plantarum Rariorum, Hortus Botanicus Schoenbrunnensis, and Selectarum Stirpium Americanarum Historia, established him as one of the most significant botanical authors and illustrators of the generation following Linnaeus, with whom he corresponded directly.

He was elevated to the nobility in 1774, elected a foreign member of the Royal Swedish Academy of Sciences in 1783 and of the Prussian Academy of Sciences in 1786, awarded the Royal Hungarian Order of St. Stephen and raised to the rank of Freiherr, or Baron, in 1806, and made an honorary member of the Prussian Academy of Sciences in 1812. He died in Vienna on 26 October 1817, the date given by the majority of biographical sources including the Austrian National Library and the City of Vienna's own historical archive, though a minority of sources cite 24 October 1817. He was commemorated posthumously with a bust by the sculptor Leopold Schrodl, unveiled in 1905 in the Arkadenhof of the University of Vienna.

Because Jacquin worked two and a half centuries before the modern art press, his critical reception comes almost entirely from scientific and bibliographic sources rather than art critics. Reference works consistently describe him as one of the most important botanical authors and illustrators of the generation immediately following Carl Linnaeus, citing his direct correspondence with Linnaeus and the scope of his illustrated publications on Austrian and American plant life. His institutional standing, reflected in memberships or honorary memberships across academies of sciences in Sweden, Prussia, and Russia, and in his ennoblement by the Habsburg court, points to a reputation built on scientific authority rather than aesthetic debate. Where his work is discussed today, whether by museums holding his engraved plates or by rare-book specialists cataloguing his folios, the emphasis remains on the scientific accuracy and documentary value of the illustrations rather than on stylistic interpretation.

Jacquin was a scientist rather than a practicing visual artist, and no conventional auction market track record exists for him in the way it does for painters or sculptors. His illustrated botanical folios are traded today primarily as rare books and botanical prints. The best documented sale figure identified in research is USD 450,000, for a deluxe second edition of Selectarum Stirpium Americanarum Historia listed by the dealer and auction house Arader Galleries in New York, with a sale date of 25 January 2007. That figure comes from a dealer listing rather than a standardized, publicly disclosed hammer price, and no higher confirmed result has been located in the archives of major auction houses. For context, Sotheby's estimated a copy of the same work at USD 80,000 to 120,000 in a 2017 sale of the Magnificent Botanical Library of D.F. Allen in New York, without publishing a realized price for that lot.

Jacquin's work does not fit the profile of a typical auction market artist. There is no catalogue raisonne and no gallery or estate representation; verification instead runs through library cataloguing and institutional bibliographic records, and collectors should expect provenance research to resemble rare-book connoisseurship more than fine art due diligence. The one large price identified in research, USD 450,000 for a deluxe Selectarum Stirpium Americanarum Historia, comes from a specialist dealer rather than a standardized auction result, and should be treated as directional rather than as an established market benchmark. Given the far larger institutional footprint of his plates, most examples in circulation are individual prints or complete folios valued well below that figure, and buyers should weigh edition, completeness, and coloring quality closely against any comparable sale before relying on a single high-water price.