Taddeo Alderotti
Taddeo Alderotti (Latin: Thaddaeus Alderottus, French: Thaddée de Florence), born in Florence between 1206 and 1215, died in 1295, was an Italian doctor and professor of medicine at the University of Bologna, who made important contributions to the renaissance of learned medicine in Europe during the High Middle Ages. He was among the first to organize a medical lecture at the university. One of his works describes a method for concentrating ethanol involving repeated fractional distillation through a water-cooled still, by which an ethanol purity of 90% could be obtained.
Taddeo Alderotti

After Giulio Traballesi · https: Gallery: https: Wellcome Collection gallery (2018-03-29) · CC BY 4.0
- Name
- Taddeo Alderotti
- Born
- between 1206 and 1215
- Birthplace
- Florence, Italy
- Died
- 1295
- Place of death
- Bologna
- Occupation
- Physician, Professor of Medicine
- Known for
- Consilia medicinalia · In Claudii Galeni artem parvam commentarii · Expositiones · Libellus conservande sanitatis · Etica in volgare
- Languages
- medieval Latin · medieval Italian
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Documentary summary
Taddeo Alderotti (Latin: Thaddaeus Alderottus, French: Thaddée de Florence), born in Florence between 1206 and 1215, died in 1295, was an Italian doctor and professor of medicine at the University of Bologna, who made important contributions to the renaissance of learned medicine in Europe during the High Middle Ages. He was among the first to organize a medical lecture at the university. One of his works describes a method for concentrating ethanol involving repeated fractional distillation through a water-cooled still, by which an ethanol purity of 90% could be obtained.
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Authority files
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In this article
Biography
Biography
Dante seems to reference him in Paradiso (XII, 82–85), indicating he pursued learning not for spiritual reasons but worldly ambition, contrasting him with St.
Gentile da Foligno, Bartolomeo da Varignana and Mondino de Liuzzi are recorded as having studied under Taddeo Alderotti. The recorded working language is medieval Latin and medieval Italian. Employment is recorded with University of Bologna. Works named in the authority record are Consilia medicinalia, In Claudii Galeni artem parvam commentarii, Expositiones, Libellus conservande sanitatis and Etica in volgare.
Key facts
Key facts
• Name — Taddeo Alderotti • Born — between 1206 and 1215 • Birthplace — Florence, Italy • Died — 1295 • Place of death — Bologna • Occupation — Physician, Professor of Medicine
Life
Life
Taddeo Alderotti was born in Florence, 1210, and received his primary education there. In the mid-1260s, Alderotti went to Bologna, a city known for the study and practice of medicine. Through the middle of the fourteenth century, the universities of Bologna, Montpellier, and Paris had a virtual monopoly on medical education in Western Europe. As a professor of medicine, Alderotti quickly gained a reputation as an excellent teacher and commanded large crowds of students. His courses relied on the works of Hippocrates, Galen, and Avicenna, which had been given a position of authority since Constantine the African brought these over from north Africa in the 11th century and translated them. The students Alderotti taught during his tenure as professor would become some of the best doctors and professors of the next generation. They included, among others, the logician Gentile da Cingoli; the doctor to the emperor, Bartolomeo da Varignana; Dino del Garbo, commentator of Avicenna; Turisanus (Pietro Torregiano de' Torregiani), commentator of Galen; and the anatomist Mondino de' Liuzzi. A doctor of high repute, Taddeo had a large number of patients, including some far outside Bologna and residing as far away as Modena, Ferrara, Rome, and Milan. In his old age, he gave up his lectures and he moved his medical practice to Venice. Born to a modest Florentine family, Taddeo was by the time of his death in 1295 a rich man. His last will and testament indicates that his medical practice, his lecture, and his investments had paid off handsomely.
Works
Works
• Consilia medicinalia. Modern edition, Nardi, Turin, 1937. • In Claudii Galeni artem parvam commentarii. Naples, 1522. • Expositiones in arduum aphorismorum Hippocratis volumen, in divinum phognosticorum Hippocratis volumen, in praeclarum regiminis acutorum Hippocratis opus, in subtilissimum Joanniti Isagorgarum libellum. Venice, 1527. • Sulla conservazione della salute or Libello per conservare la sanitate. (On the preservation of health.) Latin edition, De conservatione sanitatis, Bologna, 1477; Italian edition, G. Manuzzi and L. Razzolini, eds., Florence, 1863. • De virtutibus aquae vitae (apocryphal)
Life and career
Dated record
Life and career
The full dated record · 2 entries
1215
Taddeo Alderotti born at Florence.
1295
Taddeo Alderotti died at Florence.
Primary material
Documents and archives
reference work
- Wikidata, structured authority record Q328138: Taddeo Alderotti
Reputable secondary · Wikimedia Foundation
- “Taddeo Alderotti”, English Wikipedia, consulted as further reading
Reputable secondary · Wikipedia
authority file
- Gemeinsame Normdatei 100961827, Taddeo, Alderotti.
General reference · Deutsche Nationalbibliothek
References
Citations
References
Each reference names the institution holding it, so a reader may go to the document itself.
authority file
Gemeinsame Normdatei 100961827, Taddeo, Alderotti.Deutsche Nationalbibliothek
Secondary witnessreference work
Wikidata, structured authority record Q328138: Taddeo AlderottiWikimedia Foundation
Secondary witnessreference work
Secondary witness
Further particulars
Held on the record
Further particulars
Open the remaining particulars
Formation and teaching. Each of those relationships is stated by the authority record rather than inferred from style. Work and production. Works recorded as notable number 5: Consilia medicinalia, In Claudii Galeni artem parvam commentarii, Expositiones, Libellus conservande sanitatis and Etica in volgare.
The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 14 August 2026.
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