his death in 1815, and master of the Zunft zum Weinleuten from 1808 to 1814. Johann Georg Von der Mühll-Burckhardt (1789-1853), nephew of Johannes, was in 1814 one of the founders of the trading, shipping and banking company Burckhardt & Von der Mühll. From 1816 to 1847, he was a member of the Grand Council of Basel, where he specifically campaigned for the introduction of progressive income tax on revenue. This so-called "Basel system", introduced in Basel in 1840, quickly became a model for other cantons. A self taught architect, he designed the Basel Sommercasino, built in 1824. From the 17th century onwards, the Von der Mühll family intermarried with the other leading families of the Basel patriciate (Burckhardt, Faesch, Hoffmann, Merian, Sarasin, Staehelin, Vischer). In the 19th century, the family became patrons to various causes, and in particular hosted Clara Schumann on several of her visits to Switzerland and later the poet Rainer Maria Rilke, who dedicated a poem to Theodora Von der Mühll-Burckhardt, sister of Carl Jacob Burckhardt. Elisabeth Von der Mühll-Staehelin (1882–1970) married Fritz Hoffmann-La Roche in 1919, the founder of Hoffmann-La Roche. Notable Members Notable members of this family include: Adolf Wagner von der Mühl Friedrich von der Mühll (1883–1942), Swiss philologist and professor Hans von der Mühll-Burckhardt (1887–1953), Swiss architect, partner at Von der Mühll und Oberrauch Henri-Robert von der Mühll (1898–1980), Swiss architect Karl von der Mühll-His (1841–1912), Swiss physicist and mathematician, rector of the University of Basel Paul von der Mühll-Passavant (1863–1924), Swiss colonel and doctor Peter von der Mühll (1885–1970), Swiss classical philologist and university lecturer References