Gustaf Adolf Tenggren ( 1896 - 1970 ) was a Swedish painter. Gustaf Adolf Tenggren s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 4043.13 USD for BLAND TOMTAR OCH TROLL in 2003 to a remarkable record 20146.4 USD for Siegfried in 2014 , based on the size and medium of the artwork.