Katharina Fritsch ( 1956 - ) is a German painter. Katharina Fritsch s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 7200 USD for St. Nikolaus, 1985 - 2002 in 2006 to 35000 USD for Herz mit Zähnen (Heart with Teeth) in 2010 , based on the size and medium of the artwork.