WILHELM AUGUST RIEDER (after) ( 1796 - 1880 ) was an Austrian painter. WILHELM AUGUST RIEDER (after) s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 200 USD for FRANZ SCHUBERT in 2016 to 2649.2 USD for A Neapolitan fisherman and his family. in 2017 , based on the size and medium of the artwork.