Jean Leon Henri Gouweloos ( 1868 - 1943 ) was a Belgian painter. Jean Leon Henri Gouweloos s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 4006.36 USD for Dreaming in 2003 to 30923.85 USD for Noctambule attablé avec trois filles in 2008 , based on the size and medium of the artwork.