Léopold Louis Robert ( 1794 - 1835 ) was a Swiss painter. Léopold Louis Robert s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 258.04 USD for Musicians before a shrine of the Virgin in 2004 to 40714.35 USD for Fileuse de Sora. - Femme de Frascati in 2009 , based on the size and medium of the artwork.