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column · SIENA, October 1378 AD

A year after learning to write, St. Catherine finishes her Dialogue

Dictating to her secretaries in a hermit's chapel outside Siena, Saint Catherine completes her book of conversation with God weeks after rival cardinals elect a second Pope.

A painted scene in a Gothic loggia: a haloed nun in black and white Dominican habit stands at right, hands clasped at her breast, speaking toward a tonsured friar seated at left who writes on a sloped desk; above them, in a golden mandorla, Christ appears with attendant figures.
Saint Catherine of Siena dictates the Dialogue to a scribe, with Christ in a vision above her, in a painting by Giovanni di Paolo, c. 1447–1449 AD.

— Saint Catherine of Siena finished her book this month. In the chapel beside a hermit’s cell outside Siena, at thirty-one, she dictated the last pages of the Dialogue to her secretaries. She was a dyer’s daughter who wore the habit of St. Dominic, she had never been to school, and for most of her life she could barely read or write. She finished it in the first weeks of a split in the Church, with two men claiming to be Pope.

On September 20 the cardinals who had withdrawn from Rome declared that Pope Urban VI’s election had been forced on them by fear. They chose Cardinal Robert of Geneva, who took the name Clement VII. St. Catherine held Pope Urban VI to be the Vicar of Christ, and wrote to tell him so as soon as the news reached Siena.

In the autumn of 1377 AD St. Catherine was at Rocca d’Orcia, a castle of the Salimbeni family, trying to end their feuds. There, by her own account, she learned to write. In a long letter to her confessor, Blessed Raymond of Capua, she said she had written it “with my own hand in the Island of Rocca, in the midst of sighs and so many tears, that I could not see out of my eyes.” She went on: “He gave me the faculty of being able to write, so that on returning from my ecstasy I might relieve my heart a little, and so prevent its bursting”. Her biographer Edmund Gardner reads that letter as almost a first sketch of the Dialogue, because it contains the vision that became the starting point of the book.

Florence had been at war with the Pope, and since May 1376 AD a papal interdict had stopped the Mass in Florence and the country around it. In late July 1378 AD the peace St. Catherine had worked for between Florence and the Pope was signed. The next day the Pope allowed the priests of Florentine territory to say Mass freely again. St. Catherine came home to Siena that summer, glad the peace was made, and for a few months little was asked of her. She spent those months on the book.

Between July and October she often went out to the chapel beside the cell of Fra Santi, a hermit from Teramo, taking one of her secretaries and one of the women who followed her. Blessed Raymond wrote that she had asked her secretaries “attentively to observe everything when, according to her custom, she was rapt out of her corporeal senses, and carefully to write down whatever she then dictated”. Blessed Stefano Maconi and two other secretaries did most of the writing, and a fourth sometimes joined them.

The book is a conversation. Pope St. Paul VI described its plan when he declared St. Catherine a Doctor of the Church in 1970 AD. She asks and God answers, and in his answers God the Father explains to her the life of grace, in each person and in the whole Church. It opens with four things she asked of God. The first was a request on her own behalf. The second was for the reform of the Church. The third was for the whole world, and above all for peace among the Christians who were rebelling against the Church and persecuting it. The fourth asked God’s providence for things in general and for one matter that concerned her.

Fra Tommaso Caffarini, a Dominican of Siena who often watched her in that chapel, saw her begin to pray and then speak with God as in a dialogue. As she dictated she sometimes held her hands clasped on her breast, sometimes walked about the room or knelt, and kept her eyes turned toward heaven the whole time. When interruptions kept her from the work for days, she picked it up exactly where she had stopped. Blessed Stefano Maconi, who had often seen her in ecstasy, later testified: “She gives the explanation of these things in her Book, great part of which I wrote from her dictation”. Blessed Stefano had also seen her write many sheets of it in her own hand. He kept some of them and left them for safekeeping at the Carthusian monastery of Pontignano, two miles from Siena.

On October 13, by Fra Tommaso Caffarini’s dating, she finished the work. The book ends with St. Catherine’s prayer: “Clothe me, clothe me with Thee, oh! Eternal Truth, that I may run my mortal course with true obedience and the light of holy faith, with which light I feel that my soul is about to become inebriated afresh”. Under it the book carries a closing line: “Here ends the book made and compiled by the most venerable virgin, most faithful servant and bride of Jesus Christ crucified, Catherine of Siena, of the habit of Saint Dominic, in the year of the Lord 1378, in the month of October”.

About this story

Catholic Saints News tells the lives of the saints as news from their own time and place. This story was written with AI from the historical record, and we read and approved it before it ran.

The Saints' words. This newspaper will never make a saint say something the historical record does not preserve.

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Image. Giovanni di Paolo, Saint Catherine of Siena Dictating Her Dialogues, c. 1447–1449, Detroit Institute of Arts (66.15) — see the original.

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A small painted panel of a plain vaulted hall: churchmen in scarlet mantles and red caps stand and sit together at the centre and left, two apart by the wall, while a notary in brown writes on a sheet of parchment at a green-covered trestle table and a guard in mail stands at the open door.
About this picture

AI-generated image, in the manner of Sienese egg tempera and gold leaf on gessoed poplar panel, from the paper's reference portrait based on St. Catherine before the Pope at Avignon (Giovanni di Paolo, c. 1460–1463, Museo Nacional Thyssen-Bornemisza, Madrid) View source artwork.

column · FONDI, Campagna, September 20, 1378 AD

Cardinals declare the April election void and elect a second Pope

The cardinals who left Rome met today in the palace of the Count of Fondi and elected Cardinal Robert of Geneva in place of the man they had made Pope five months ago. They say their April votes were cast in fear of a Roman crowd and count for nothing, and by the Church's own law there is no court on earth that can rule on the claim. Saint Catherine of Siena has been writing letters on Pope Urban VI's side since the first news of the quarrel reached her.

A painting in the Sienese panel style of a woman in a white veil and tunic and a black mantle, seated on a bench in a pink-brick room at night, while a young man in a red-brown gown writes at a sloping desk across from her. A second veiled woman stands behind her holding a candle, a crucifix hangs on the wall, and a letter sealed with red wax lies on the floor.
About this picture

AI-generated image in the manner of Sienese egg tempera on panel, after Giovanni di Paolo, St. Catherine before the Pope at Avignon (c. 1460–1463, Museo Nacional Thyssen-Bornemisza, Madrid) View source artwork.

Saint Catherine of Siena wrote to Pope Urban VI on October 5, 1378 AD, as word reached Siena that the cardinals who had left Rome had elected a rival Pope at Fondi. St. Catherine called those cardinals demons in human form. She told Pope Urban to face the danger without fear and keep good shepherds near him, and promised that she and her companions would obey him until death.

Also in the edition of Tuesday, 13 October 2026