Gerda Rydberg Tirén ( 1858 - 1928 ) was a Swedish painter. Gerda Rydberg Tirén s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 47.85 USD for konversation in 2005 to 7754.59 USD for Convalescent in 2017 , based on the size and medium of the artwork.