Julius Johann Ferdinand Kronberg ( 1850 - 1921 ) was a Swedish painter. Julius Johann Ferdinand Kronberg s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 257.89 USD for Drottningh in 2004 to a remarkable record 101098.9 USD for Romeo och Julia på balkongen in 2010 , based on the size and medium of the artwork.