Bertha Wegmann ( 1847 - 1926 ) was a painter. Bertha Wegmann s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 204.76 USD for Ovalt portræt af siddende kvinde. in 2004 to 19737.57 USD for To veninder drikker te i kunstnerens atelier in 2005 , based on the size and medium of the artwork.