"... to write was to live my own life and do my own work."Sigrid Undset
The medieval novels about Kristin Lavransdatter (1920-1922) and Olav Audunssøn (1925-1927) were written at Bjerkebæk. She was awarded the Nobel Prize for Literature in 1928 for her “powerful description of Nordic life in the middle ages”.
Sigrid Undset converted to Catholicism in 1924. This is reflected in a number of essays and contemporary novels that she wrote in the 1930s and 40s.
In 1940 Sigrid Undset had to leave Norway because of her views on Nazism. She lived in the USA throughout the war and was a tireless fighter for Norway and the allies in articles and lectures. She also engaged herself in the fate of the Jews. After the war she made her way back to Bjerkebæk, which had been vandalised by the Germans.