Gustav Theodor Wegener ( 1817 - 1877 ) was a Danish painter. Gustav Theodor Wegener s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 286.97 USD for Scenery from the Nordic mythology in 2007 to 3405.69 USD for The artist's selfportrait. in 2010 , based on the size and medium of the artwork.