Gustav Vermehren ( 1863 - 1931 ) was a Danish painter. Gustav Vermehren s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 32.95 USD for Portræt af Elisabeth Bruns født Gyldenstjerne-Sehestedt in 2004 to 3128.1 USD for A heartbreak. in 2012 , based on the size and medium of the artwork.