Isidore Jules Bonheur ( 1827 - 1901 ) was a French painter. Isidore Jules Bonheur s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 5042.75 USD for MOUNTED JOCKEY in 2004 to 168000 USD for The Steeplechase in 2005 , based on the size and medium of the artwork.