I wrote an essay on Sigrid Undset for the Intercollegiate Studies Institute’s web site:
Like one of her own characters, Sigrid Undset followed her heart, confronted the consequences, and learned. Enabled by a government grant to live abroad, she began an affair in Rome with a married Norwegian painter, Anders Castus Svarstad. They married in 1912, after his divorce, and divorced in turn in 1919. By that time, they’d moved back to Norway, where their third child was born. Their second child, a daughter, was mentally handicapped. When Sigrid learned to her horror that Svarstad’s ex-wife had placed her children by him in an orphanage, Sigrid adopted them. One of these was also mentally handicapped. (Years later, when she received her Nobel Prize, she would donate the entire sum to children’s charities.)
Read the whole thing here.