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{{Short description|13th century Italian astrologer and astronomer}}
⚫ '''Guido Bonatti''' from ] (d. between 1296 and 1300) was a famous ] ] and ]. He was the most celebrated astrologer in ] in his century.
]
⚫ {{astrology | upright}}
⚫ '''Guido Bonatti''' (died between 1296 and 1300) was an ] ], ] and ], who was the most celebrated ] of the 13th century.<ref name=boncomp1>{{Cite book
| last = Boncompagni
| first = Baldassarre
| author-link = Boncompagni
| title = Della vita e delle opere di Guido Bonatti, astrologo e astronomo del secolo decimoterzo
| date = 1851
| language = it
}}</ref>
Bonatti was advisor of ], ], ] and ]. He also served the communal governments of ], ] and ]. His employers were all ] (supporters of the ]), who were in conflict with the ] (supporters of the ]), and all were excommunicated at some time or another.<ref name="Dykes">{{cite book |last=Dykes|first=Benjamin N.|title=The Book of Astronomy by Guido Bonatti|date=1200s |publisher=Cazimi Press |isbn=9781934586006}}</ref> Bonatti's astrological reputation was also criticised in ]'s '']'', where he is depicted as residing in ] as punishment for his astrology.<ref>{{Cite book | last = Alighieri | first = Dante
| author-link = Dante Alighieri | title = Divine Comedy | publisher = ] | date = 1867 | url = https://books.google.com/books?id=00pdAAAAMAAJ&pg=PA118}}</ref>


His most famous work was his ''Liber Astronomiae'' or 'Book of Astronomy', written around 1277. This remained a classic astrology textbook for two centuries.<ref name="Dykes" /><ref>Campion, Nicholas. ''An Introduction to the History of Astrology''. ISCWA, 1982. p. 46.</ref>
⚫ His dates of birth and death are unknown, the latter probably occurring between 1296 and 1300. In 1233 he is known as the winner of a dispute in ] with the friar ] from ], who maintained the non-scientificity of astrology. He was very much interested in astronomy and astrology.


==Biography==
He was advisor of ], ], ] and ].
⚫ Bonatti's dates of birth and death are unknown, the latter probably occurring between 1296 and 1300. In 1233 he is known as the winner of a dispute in ] with the friar Giovanni Schio from ], who maintained the non-scientific basis of astrology.<ref name=boncomp1/>


He is probably the first ] to have used the ]. He used it to refine the timing for the military campaigns for the Count of ]<ref>Michael Harding and Charles Harvey: ''Working with Astrology: The Psychology of Harmonics, Midpoints and AstroCartoGraphy'', Penguin Group, London.</ref> Bonati announced to the count that he would repulse the enemy but would be wounded in the fray. The event transpired as Bonati had predicted, and the count, who had taken with him the necessary materials to staunch his wound in case the prophecy came true, became a devout adherent of astrology.<ref></ref>
He served also the communal governments of ], ] and ].


There is a tradition that Bonatti, towards the end of his life, took the friar's habit of the ]. This has been contested, as Bonatti expressed great disdain for Franciscans in his early period. However, the Franciscan Order, in the 1924 inaugural issue of its annual publication, ''Franciscan Studies'', lays claim to Fra Guido Bonatti:
His book ''Liber Astronomiae'', written around 1277, was reputed "the most important astrological work produced in Latin in the 13th century" (]).


{{quote|The celebrated physicist, astronomer and astrologer, Guido Bonatti (d. 1296), a Friar Minor, drew scholars to his professional chair from all parts of Europe. He wrote ''Theoria Planetarum'' (printed at Venice, 1506) and ''Liber Astronomicus''.<ref>{{cite journal | title=Science in the Franciscan Order: a historical sketch | author=Lenhard, John M., OFM Cap. | journal=Franciscan Studies | date=1924}}</ref>}}
He also appears in ]'s '']'', where he is in ] as punishment for his astrology. The episode cited is the victorious defence of Forlì against the ] French troops sent by ].


According to the uncorroborated account of the Italian historian ], Bonatti was murdered by robbers whilst returning from a study trip to Paris and other Italian cities, being set upon in or near Casena, with his body left upon the road. Evidence from various accounts establishes that Bonatti was in his eighties when he died.<ref name="Dykes" />{{RP|xliv}}
⚫ {{astrology-stub}}

==References==
{{reflist}}


==External links== ==External links==
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* {{Webarchive|url=https://web.archive.org/web/20120313124213/http://www.ceskaastrologie.cz/ukazky/Lilly_Bonatti.pdf |date=2012-03-13 }}
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* (Latin)
<!-- Metadata: see ] -->
* {{Webarchive|url=https://web.archive.org/web/20190513055837/https://hos.ou.edu/galleries//03Medieval/Bonatti/1491/ |date=2019-05-13 }} High resolution images of works by Guido Bonatti in .jpg and .tiff format.
{{Persondata

|NAME = Bonatti, Guido
{{Authority control}}
|ALTERNATIVE NAMES =
|SHORT DESCRIPTION = Famed Italian astrologer/astronomer
|DATE OF BIRTH =
|PLACE OF BIRTH =
|DATE OF DEATH =
|PLACE OF DEATH =
}}


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Latest revision as of 04:43, 23 September 2024

13th century Italian astrologer and astronomer
Guido Bonatti, anonymous 18th-century engraving.
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Guido Bonatti (died between 1296 and 1300) was an Italian mathematician, astronomer and astrologer, who was the most celebrated astrologer of the 13th century. Bonatti was advisor of Frederick II, Holy Roman Emperor, Ezzelino da Romano III, Guido Novello da Polenta and Guido I da Montefeltro. He also served the communal governments of Florence, Siena and Forlì. His employers were all Ghibellines (supporters of the Holy Roman Emperor), who were in conflict with the Guelphs (supporters of the Pope), and all were excommunicated at some time or another. Bonatti's astrological reputation was also criticised in Dante's Divine Comedy, where he is depicted as residing in hell as punishment for his astrology.

His most famous work was his Liber Astronomiae or 'Book of Astronomy', written around 1277. This remained a classic astrology textbook for two centuries.

Biography

Bonatti's dates of birth and death are unknown, the latter probably occurring between 1296 and 1300. In 1233 he is known as the winner of a dispute in Bologna with the friar Giovanni Schio from Vicenza, who maintained the non-scientific basis of astrology.

He is probably the first astrologer to have used the midpoints in astrology. He used it to refine the timing for the military campaigns for the Count of Montefeltro Bonati announced to the count that he would repulse the enemy but would be wounded in the fray. The event transpired as Bonati had predicted, and the count, who had taken with him the necessary materials to staunch his wound in case the prophecy came true, became a devout adherent of astrology.

There is a tradition that Bonatti, towards the end of his life, took the friar's habit of the Franciscan Order. This has been contested, as Bonatti expressed great disdain for Franciscans in his early period. However, the Franciscan Order, in the 1924 inaugural issue of its annual publication, Franciscan Studies, lays claim to Fra Guido Bonatti:

The celebrated physicist, astronomer and astrologer, Guido Bonatti (d. 1296), a Friar Minor, drew scholars to his professional chair from all parts of Europe. He wrote Theoria Planetarum (printed at Venice, 1506) and Liber Astronomicus.

According to the uncorroborated account of the Italian historian Ludovico Antonio Muratori, Bonatti was murdered by robbers whilst returning from a study trip to Paris and other Italian cities, being set upon in or near Casena, with his body left upon the road. Evidence from various accounts establishes that Bonatti was in his eighties when he died.

References

  1. ^ Boncompagni, Baldassarre (1851). Della vita e delle opere di Guido Bonatti, astrologo e astronomo del secolo decimoterzo (in Italian).
  2. ^ Dykes, Benjamin N. (1200s). The Book of Astronomy by Guido Bonatti. Cazimi Press. ISBN 9781934586006.
  3. Alighieri, Dante (1867). Divine Comedy. Ticknor and Fields.
  4. Campion, Nicholas. An Introduction to the History of Astrology. ISCWA, 1982. p. 46.
  5. Michael Harding and Charles Harvey: Working with Astrology: The Psychology of Harmonics, Midpoints and AstroCartoGraphy, Penguin Group, London.
  6. Guido Bonati: Information and Much More from Answers.com
  7. Lenhard, John M., OFM Cap. (1924). "Science in the Franciscan Order: a historical sketch". Franciscan Studies.{{cite journal}}: CS1 maint: multiple names: authors list (link)

External links

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