

There she met the Norwegian painter Anders Castus Svarstad who was married. She quit her job and travelled around Europe, spending nine months in Rome. She went on to write books set in contemporary Oslo. It created something of a stir, dealing with adultery. She then wrote a shorter, contemporary novel which was at first turned down and then accepted. She finished it when she was twenty-two but it was turned down for publication. She started writing a historical novel when she was sixteen. While employed at office work, Undset wrote and studied. She took a secretarial course and worked for an engineering company for ten years.

Her father died when she was eleven, meaning the family could not afford to send her to university. The family moved to Norway when she was two. With sensitivity to the zealous love of God and man that permeated the life of Saint Catherine, Undset presents a most moving and memorable portrait of one of the greatest women of all time.Sigrid Undset was born in Kalundborg, Denmark in 1882.

Believing that peace in Italy could be achieved only if the Pope, then living in France, returned to Rome, Catherine boldly traveled to Avignon to meet with Pope Gregory XI. The intensity of her prayer, sacrifice, and service to the poor won her a reputation for holiness and wisdom, and she was called upon to make peace between warring nobles. An extraordinarily active, intelligent, and courageous woman, Catherine at an early age devoted herself to the love of God. Catherine of Siena was a particular favorite of Undset, who also was a Third Order Dominican. Their exemplary lives left a deep impression upon the author, an impression Undset credited as one of her reasons for entering the Church in 1924.

Her meticulous research of medieval times, which bore such fruit in her multi-volume masterpieces Kristin Lavransdatter and The Master of Hestviken, acquainted her with some of the holy men and women produced by the Age of Faith. One of the greatest novelists of the twentieth century, Undset was no stranger to hagiography. Known for her historical fiction, which won her the Nobel Prize for literature in 1928, Undset based this factual work on primary sources, her own experiences living in Italy, and her profound understanding of the human heart. Sigrid Undset's Catherine of Siena is critically acclaimed as one of the best biographies of this well known, and amazing fourteenth-century saint.
