Balthasar Denner ( 1685 - 1749 ) was a German painter. Balthasar Denner s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 676 USD for Paar Gemälde mit Portraits eines älteren Ehepaares. in 2012 to 44180.65 USD for Portrait of an old man in a fur-trimmed coat in 2015 , based on the size and medium of the artwork.