Where does the portrait of German composer and pianist Ludwig van Beethoven hang today?
Beethoven (Mähler, 1804–05): Joseph Willibrord Mähler's portrait of Ludwig van Beethoven, painted in approximately 1804 or 1805, is the first of four untitled portraits the painter made of the composer. Beethoven (Mähler, 1804–05):  Today it hangs in the Pasqualati House of the Vienna Museum. Ludwig van Beethoven: Ludwig van Beethoven ( , ; ] ; baptised 17 December 177026 March 1827) was a German composer and pianist.
Pasqualati House of the Vienna Museum