Karl Joseph Begas ( 1794 - 1854 ) was a German painter. Karl Joseph Begas s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 568.18 USD for Porträt eines jungen Herrn in dunklem Frack in 2004 to 42000 USD for Fanny Elssler as 'La Sylphide' in 2011 , based on the size and medium of the artwork.