Jean Francois Duval ( 1776 - 1854 ) was a painter. Jean Francois Duval s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 2396.55 USD for Reisigsammlerin und Vieh vor abendlicher Berglandschaft in 2005 to 3506.74 USD for Idyllic Scene with Shepherds by the River in 2013 , based on the size and medium of the artwork.