Hans Ditlev Christian Martens ( 1795 - 1864 ) was a German painter. Hans Ditlev Christian Martens s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 404.54 USD for Portræt af en ung Kvinde". Portrait of a young woman in 2012 to 4635.35 USD for The Basilica of St. John Lateran in 2012 , based on the size and medium of the artwork.