Ercole (hercule) Trachel ( 1820 - 1872 ) was a French painter. Ercole (hercule) Trachel s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 1286.32 USD for Villefranche in 2005 to 2560.82 USD for Unknow in 2014 , based on the size and medium of the artwork.