Sigge Berggren ( - ) is a painter. Sigge Berggren s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 66.64 USD for Troligen porträtt av Dag Hammarsköld. Stensockel in 2005 to 284.9 USD for Mansporträtt. Betongsockel. in 2007 , based on the size and medium of the artwork.