Christian Ehrenfried Weigel

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Christian Ehrenfried Weigel (24 May 1748 in Stralsund – 8 August 1831 in Greifswald) was a German scientist and -- beginning in 1774 -- a professor of Chemistry, Pharmacy, Botany, and Mineralogy at the Universität von Greifswald.

In 1771 he received his degree, having studied under Johann Christian Erxleben in Göttingen. In 1806 Weigel was ennobled and carried from then on a "von" in his name. In 1808 he became the personal physician of the Swedish royal house. Among other things, Weigel developed the counter-flow condenser (German Gegenstromkühler) (1771), which was later improved upon by Justus von Liebig and then became to be known as the Liebig condenser (Liebigkühler). Furthermore, the Genus Weigela is named after him.

The standard botanical author abbreviation Weigel is applied to species he described.