Search
feature · TUNIS, Barbary, September 1605 AD

St. Vincent de Paul, sold again at Tunis, tends an alchemist's furnaces

The old apothecary who bought St. Vincent de Paul keeps ten or fifteen fires always burning, and offers his slave everything he knows if he will change his religion.

In a dim vaulted workshop a barefoot young man in a coarse linen shirt and drawers kneels at a row of small glowing furnaces, shovelling charcoal, while an old turbaned apothecary stands watching beside a bench of glass stills and a boy carries in a basket of charcoal from the sunlit yard door.
St. Vincent de Paul feeding the alchemist's furnaces in his master's workshop at Tunis, 1605 AD.
About this picture

AI-generated image, in the manner of French oil painting of the middle of the seventeenth century, from the paper's reference portrait based on Portrait de saint Vincent de Paul (1581-1660) (Anonymous, after a model by Simon Francois de Tours, circa 1660, Musee Carnavalet - Histoire de Paris, inv. P863) View source artwork.

— Ten or fifteen furnaces are kept always burning in a workshop in this city, and the man who feeds them was sold for the second time this month. A fisherman had bought Saint Vincent de Paul out of the market-place and got rid of him when the sea made his new slave ill. An old Muslim apothecary bought him to tend the fires — “an old chemist,” as St. Vincent de Paul has it, “a mighty extractor of quintessences.”

St. Vincent de Paul is twenty-four, a priest of nearly five years and a bachelor of divinity of Toulouse. At Tunis a slave is owned outright and can be sold on again at any time. The corsairs who brought him in had posted a notice at the landing that their captives were Spaniards, so no French claim could be made for them.

He was on that boat over a debt. A legacy from an old lady he knew was mostly money a debtor owed her. St. Vincent de Paul chased the man to Marseilles, settled for three hundred crowns and took ship for Narbonne. In July three Turkish brigantines working the Gulf of Lyon gave chase and took the boat. Every man aboard was killed or wounded, and an arrow hit St. Vincent de Paul; the wound has not healed. The pirates steered for Barbary.

At Tunis the captives were stripped, given a pair of drawers, a linen coat and a cap, and walked through the town with chains round their necks. In the market-place the merchants were “judging, just as if buying horses or cattle, making us open our mouths to see our teeth, feeling our sides, probing our wounds, making us walk, trot, run, raise weights and wrestle, in order to test our strength,” St. Vincent de Paul wrote afterwards to one of his first pupils.

In the workshop the old man had spent fifty years mixing metals in search of the philosopher’s stone, the substance that was to turn base metal into gold. St. Vincent de Paul wrote: “I have often seen him melt equal quantities of gold and silver, then mixing them with powder in the bottom of a crucible, place the whole in the fire for twenty-four hours, when the mixture would become all gold. Very often he amalgamated bad with good silver, and sold it for the benefit of the poor. My business was to keep up ten or fifteen furnaces, which, thank God, I made even a pleasure.”

The old man made medicines as well. M. de Commet, the lawyer at Dax who had taken him in at sixteen and the father of that pupil, was suffering from kidney stones. “With the hope and belief of seeing you again, sir, I was constantly asking my master to teach me how to cure the gravel, for I witnessed him working wonders every day,” St. Vincent de Paul wrote. “He taught me, and actually made me go through the process of mixing the ingredients.”

The old man was mild and easy-tempered, and he grew fond of the slave who tended his fires. “My master liked me very much and took pleasure in talking to me of alchemy, and even of his religion, making every effort to win me over, promising me great riches and knowledge,” St. Vincent de Paul wrote. The price was his faith: he was to become a Muslim. He refused, and the asking went on for the rest of the year, coaxing and threats both. What carried him, he wrote, was this: “God always inspired me with an assurance of my release, through the constant prayers I offered to the Blessed Virgin, and to her intercession I attribute my deliverance.”

He tended the furnaces for almost a year, from this month until the following August. By then the old apothecary’s name had carried to Constantinople, and Sultan Ahmed I sent for him to try his skill at court. The old man died on the road, and left his slave to a nephew, a man St. Vincent de Paul called “a thorough man-hater.” The nephew heard that the French consul, M. de Braves, had reached Tunis with the Sultan’s orders to release the French slaves, and sold him on before the consul could get to him. The buyer was a man from Nice in Savoy who had turned Muslim.

Two letters about those months outlived him: this one to his pupil, and another from Rome in 1608 AD. They were produced against him at the congregation of January 22, 1715 AD, called to weigh whether he had practised the virtues to a heroic degree. The Promoter of the Faith, whose office is to argue against a cause and who is commonly called the devil’s advocate, was Prosper Lambertini, afterwards Pope Benedict XIV. He held up the letters of the captivity as evidence that the young slave had believed in alchemy and the occult sciences. He did not press it hard.

The objection failed. On June 16, 1737 AD Pope Clement XII sang the Mass of canonisation at St. John Lateran, and came back to the old man’s art. St. Vincent de Paul, the Pope said, “made better use of it than those who try to change the nature of metals; for he has converted evil into good, the sinner into a just man, slavery into freedom, hell into paradise.”

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.

Read more

Image. AI-generated image, in the manner of French oil painting of the middle of the seventeenth century, from the paper's reference portrait based on Portrait de saint Vincent de Paul (1581-1660) (Anonymous, after a model by Simon Francois de Tours, circa 1660, Musee Carnavalet - Histoire de Paris, inv. P863) — see the original.

Found an error? Let us know.

More on this saint

A priest in a black cassock extends his hand toward a crowd of poor men and chained galley convicts gathered at his feet, while an angel beside him holds up a monstrance with the Eucharist, and the Virgin and Child look down from clouds above.
event · CHÂTEAU-L'ÉVÊQUE, Périgord, September 23, 1600 AD

St. Vincent de Paul, a farmer's son of nineteen, is ordained priest

Bishop François de Bourdeille of Périgueux ordained St. Vincent de Paul to the priesthood on September 23, 1600 AD, in the church at Château-l'Évêque, a village used because Protestants had pulled down the cathedral in the city. He was nineteen — or twenty-four, by an older reckoning of the year he was born — a farmer's son from the Landes whose father had chosen him for the Church and sold two oxen to keep him at his studies. He said his first Mass in a hill chapel above Buzet, with nobody there but a server and a priest to direct him.

A painting of a young priest in a black cassock and small white collar sitting alone in a bare room, his right hand pressed to his chest, beside a table with a lit candle, an inkwell with a quill and a blank sheet of parchment; a black cloak and hat hang on the wall by a narrow bed.
About this picture

AI-generated image, in the manner of French oil painting of the middle of the seventeenth century, from the paper's reference portrait based on Portrait de saint Vincent de Paul (1581-1660) (Anonymous, after a model by Simon Francois de Tours, circa 1660, Musee Carnavalet - Histoire de Paris) View source artwork.

In his first years in Paris, Saint Vincent de Paul asked God to free a priest from doubts about the faith and offered to carry them in his place. The priest was freed at once, and the doubts passed to St. Vincent for four years. They left him on the day he vowed to spend his life serving Jesus Christ in the poor.

Also in the edition of Sunday, 20 September 2026

event · SAN GIOVANNI ROTONDO, Apulia, September 20, 1918 AD

Saint Pio found unconscious in the friary choir, bleeding from five wounds

St. Pio of Pietrelcina, a thirty-one-year-old Capuchin priest, was found unconscious on the floor of the friary choir above San Giovanni Rotondo this morning. He was bleeding from five deep wounds, in both hands, both feet and his side — the stigmata, the wounds of the crucified Christ, opened in the body of a living man. The friars carried him to his cell, where he came round and begged them to tell no one.

Teresa's last journey · Part 3 · ALBA DE TORMES, Castile, September 20, 1582 AD

St. Teresa arrives at Alba de Tormes too ill for the castle

Saint Teresa of Ávila reached Alba de Tormes at six o'clock on the evening of September 20, 1582 AD, after three days on the road from Medina with almost nothing to eat. She had been fetched to bring a blessing on the birth of the Duchess of Alba's grandchild, and a messenger stopped the carriage inside the town to say the child was already born. Too weak to be taken to the castle, she was sent instead to the convent she had founded here eleven years before, where the nuns laid her on the straw mattress their rule allows every nun, however ill.

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.