Which Nobel literature laureate wrote the novel trilogy Kristin Lavransdatter?

Sigrid Undset wrote the novel trilogy Kristin Lavransdatter.

The trilogy follows Kristin, a woman living in medieval Norway, from youth through marriage, motherhood, and old age. Its three original Norwegian volumes—Kransen (The Wreath), Husfrue (The Wife), and Korset (The Cross)—appeared from 1920 to 1922.

Undset’s detailed portrayal of fourteenth-century Norwegian society drew on medieval chronicles, Old Norse literature, archaeology, and her father’s work as an archaeologist. The books are historical fiction, but their emotional focus is intensely personal: family, faith, desire, guilt, and responsibility.

Kristin Lavransdatter was central to Undset’s winning the 1928 Nobel Prize in Literature. A common mix-up is confusing Undset with Selma Lagerlöf, Pearl S. Buck, or Grazia Deledda—each was also a woman Nobel laureate, but none wrote this trilogy.