Jean Etienne Liotard (after) ( 1702 - 1789 ) was a Swazi painter. Jean Etienne Liotard (after) s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 2707.99 USD for Portrait de Favart in 2004 to 22500 USD for PORTRAIT OF HÉLÈNE GLAVANY AND MR. LEVETT SEATED ON A DIVAN in 2013 , based on the size and medium of the artwork.