Nikolaus Joseph von Jacquin
Between 1755 and 1759, Nikolaus von Jacquin was sent to the West Indies and Central America by Francis I to collect plants for the Schönbrunn Palace, and amassed a large collection of animal, plant and mineral samples.
In 1763, Nikolaus von Jacquin became Professor of Chemistry and Mineralogy in Schemnitz (now Banská Štiavnica in Slovakia). In 1768, he was appointed Professor of Botany and Chemistry and became director of the botanical gardens of the University of Vienna. For his work, he was knighted in 1774. In 1783, he was elected a foreign member of the Royal Swedish Academy of Sciences. In 1806 he was made baron.
His younger son, Emil Gottfried (1767–1792), and his daughter, Franziska (1769–1850), were friends of Mozart; Mozart wrote two songs for Gottfried to publish under Gottfried's name (K. 520 Als Luise … and K. 530 Das Traumbild) and gave piano lessons to Franziska. Mozart dedicated a considerable number of his works to the Jacquin family, notably the Kegelstatt Trio. This was first played at the Jacquins' house in August 1786 with Franziska playing the piano.
His son Joseph Franz (1766–1839) took his succession as professor of botany and chemistry at the University of Vienna and has written several notable botanical books.
Von Jacquin died in Vienna.
- Enumeratio systematica plantarum (1760), 
- Enumeratio Stirpium Plerarumque (1762)
- Selectarum Stirpium Americanarum (1763), 
- Observationum Botanicarum (part 1 1764, part 2 1767, part 3 1768, part 4 1771)
- Hortus Botanicus Vindobonensis (3 volumes, 1770–1776) with plates by Franz Anton von Scheidel, 
- Florae Austriacae (5 volumes, 1773–1778), 
- Icones Plantarum Rariorum (3 volumes, 1781–1793), 
- Plantarum Rariorum Horti Caesarei Schoenbrunnensis (4 volumes, 1797–1804), 
- Fragmenta Botanica 1804–1809 (1809), 
- Nicolai Josephi Jacquin collectaneorum supplementum ...
- Oxalis :Monographia iconibus illustrata
- Dreyhundert auserlesene amerikanische Gewächse nach linneischer Ordnung (with Zorn, Johannes)
- Regarding personal names: Freiherr is a title, translated as Baron, not a first or middle name. The female forms are Freifrau and Freiin.
- "Austrian Mint Issues Nikolaus Joseph von Jacquin 20€ Silver Coin". Coin Update News. Retrieved March 8, 2011.
- "Author Query for 'Jacq.'". International Plant Names Index.
Media related to Nikolaus Joseph von Jacquin at Wikimedia Commons