Karl Rössler

Karl Rössler (6 May 1788, in Wiesbaden – 23 August 1863, in Hanau) was a German manufacturer and mineralogist.

After a business apprenticeship in Frankfurt am Main, he acquired in 1818 a hat factory, which he transformed into a highly successful company.

He had a keen interest in the geology, mineralogy and paleontology of the Wetterau, and accordingly, collected numerous minerals and fossils of the region.

[1] In 1853 he was named director of the Wetterauische Gesellschaft (Hanau), and in 1858 became a member of the Academy of Sciences Leopoldina.

During the following year, he was a founding member of the Freies Deutsches Hochstift (Free German Foundation) in Frankfurt.