Christian Tangermann ( 1760 - 1830 ) was a German painter. Christian Tangermann s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 773.79 USD for Bildnis des Berliner Arztes Carl Heinrich Albert Bietz (1792 - 1845) in 2008 to 5511.46 USD for Der Bankier Edmund Delmar und seine Frau Nanny, geb. Humbert (2 Bilder). in 2014 , based on