John of Gaddesden

With us there was a doctor of physic;
In all this world was none like him to pick
For talk of medicine and surgery;
For he was grounded in astronomy. —Prologue to the Canterbury Tales

Doctor, from the Ellesmere MS.

John of Gaddesden (c.1280-1361) was a "Doctor of Physik" who was quite well-known in his day, so much so that modern scholars looking to find analogs for the characters in Chaucer's Canterbury Tales have suggested he is the likeliest candidate for Chaucer's "doctor of physic." As a fan of both Chaucer and historical detail, I'm going to weigh in and say . . . maybe.

Who was Gaddesden, and why was he considered the model for Chaucer's pilgrim? For one thing, he had written Rosa medicinæ (The rose of medicine; sometimes called the Rosa Anglicæ), a compendium of medical information called so because it was in five parts, like the five sepals of a rose. In it, he quotes numerous authorities from the past; Chaucer's list of authorities with whom his doctor is familiar lines up nicely with Gaddesden's sources. Also, Gaddesden had a reputation for charging high fees, and Chaucer makes it clear that his doctor loved gold.

To be honest, however, Gaddesden's book was quoting the same authorities that anyone would quote when compiling a book on medicine. It was completely unoriginal. Even his title seems derivative, probably based on Lilium medicinæ (the Lily of medicine) by Bernard Gordon, produced at Montpellier in 1303. Gordon, a Scotsman, was one of the teachers of Guy de Chauliac. Chauliac, in turn, taught Gaddesden. What did Chauliac think of his student's work? Not much; he said of it:

Last of all arose the scentless rose of England, in which, on its being sent to me, I hoped to find the odor of sweet originality, but instead of that I encountered only the fictions of Hispanus, of Gilbert, and of Theodoric.

Those who write about Gaddesden being Chaucer's doctor usually justify it also be calling them "contemporaries." Let's look at the timeline: the Canterbury Tales probably wasn't started until 1387. Even if the Prologue were the first thing he wrote—highly unlikely—this was a quarter century after Gaddesden's death; a death that would have taken place when Chaucer was about 20 years old and had been connected to the household of Prince Lionel, the second son of King Edward III, only for a few years. Gaddesden seems to have been attached to the household of Edward, the Black Prince, who would have spent much of Gaddesden's later years on the continent while Chaucer was in England.

They could have crossed paths, but probably not significantly, and Gaddesden would have been long out of the public eye and consciousness when Chaucer came into his own as a poet. For Chaucer to write up a physician who quoted historical authorities, knew astrology, and loved gold probably just meant that he had met typical physicians.

Great Surgeon

The history of medicine includes many brave and progressive thinkers who were not willing to follow the herd or be content with what was already known. One such in the Middle Ages was Guy de Chauliac. Born about 1300, he studied at a university in Montpellier known for its expertise in medicine. After becoming a Master of Medicine and Surgery around 1325, he went to Bologna for further study. His reputation became such that he was invited to Avignon to be personal physician to Pope Clement VI, then Pope Innocent VI and Pope Urban V. The papal connection gave him access to a library that included the texts of the Greek physician Galen in their original; most of Europe knew Galen through less accurate Latin translations.

He possibly saved Clement's life during the spread of the Black Death, when he advised the pope to stay near blazing fires. Although many physicians fled Avignon at the arrival of the Plague, Chauliac stayed to study the disease and treat people. He determined that it was contagious, but couldn't figure out the method of contagion. Still, he advised bloodletting, a healthy diet, and exposure to pure air (hence the fires, which would have serendipitously served to keep fleas away). He also realized that there were two diseases involved because of different sets of symptoms: the initial Bubonic Plague, and the follow-up Pneumonic Plague which found its foothold in the weakened population and killed much more swiftly. Chauliac spoke out strongly against those who blamed the Jews for the Plague, explaining that scientifically it made no sense to consider them at fault.

Tools for withdrawing an arrow.

His value to the rest of the world and history was the writing of Chirurgia magna (Great [book of] Surgery) in 1363. Its seven volumes covered every imaginable medical topic of the day: intubation, surgery, disease, anesthesia, hernia, cataracts, ulcers, bloodletting, cauterization of wounds, and the use of special instruments (some of which he designed himself, such as an elaborate contraption for withdrawing an arrow from flesh). Chauliac drew on the past, quoting Galen (129-c.200) and Avicenna (Abu Ali al-Husayn ibn Abd Allah ibn Sina, c.980-1037). He placed great emphasis on learning anatomy, saying that "A surgeon who does not know his anatomy is like a blind man carving a log."

Chauliac was not always accurate. He believed, for instance, that pus was an important part of the healing process and should be left alone. Nevertheless, his Chirurgia became a standard text for the next three centuries, translated into several European languages. Unfortunately for future generations, anti-Islam sentiment caused many translators to leave out knowledge from Islamic scholars, resulting in a less complete and less accurate work. Still, he has been labeled the "Father of Modern Surgery," and his great work was the standard text until the 17th century.