Theodor Mintrop ( 1814 - 1870 ) was a German painter. Theodor Mintrop s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 193.17 USD for Selbstporträt in 2012 to 725.71 USD for AN ALLEGORY OF NIGHT in 2013 , based on the size and medium of the artwork.