Joahnn Ernst Heinsius ( 1740 - 1812 ) was a German painter. Joahnn Ernst Heinsius s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 5148.65 USD for ortrait de Charles-François de CHANCEL in 2005 to 5866.31 USD for A girl, in a white dress holding a pug dog, with a landscape background in 2006 , based on the size and medium of the