Biographical Encyclopedia of Astronomers

2014 Edition
| Editors: Thomas Hockey, Virginia Trimble, Thomas R. Williams, Katherine Bracher, Richard A. Jarrell, Jordan D. MarchéII, JoAnn Palmeri, Daniel W. E. Green

Chioniades, Gregor

  • Katherine Haramundanis
Reference work entry

Alternate Name

 Chioniades, George

BornConstantinople (Istanbul, Turkey), circa1240

DiedTrebizond (Trabzon, Turkey), circa1320

Born in Constantinople and christened George, Chioniades became a physician. Greatly attracted to mathematics, astronomy, and medical astrology, he chose to travel to Persia to further his studies. Early in 1295, he went to Trebizond (Trapezus) where he found favor with the emperor of Trebizond John II Komnenos (reigned: 1280–1297), who supported his travel and study in Persia. Between November 1295 and November 1296 he was received at the court of the Mongol Īlkhāns at Tabrīz where he studied astronomy and astrology with  Shams al-Dīn al-Bukhārī, an astronomer and teacher from Bukhārā in Central Asia. Shams al-Dīn was the author of a Persian treatise on the astrolabe that Chioniades later translated into Greek.

During his stay in Tabrīz, Chioniades amassed an important collection of astronomical works in Persian and Arabic that he took with him on his return...

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Selected References

  1. Paschos, E. A. and P. Sotiroudis (1998). The Schemata of the Stars: Byzantine Astronomy from A.D. 1300. Singapore: World Scientific.MATHCrossRefGoogle Scholar
  2. Pingree, David (1964). “Gregory Chioniades and Palaeologan Astronomy.” Dumbarton Oaks Papers 18: 133–160.CrossRefGoogle Scholar
  3. — (1985). The Astronomical Works of Gregory Chioniades. Vol. I, The Zīj al-ҁAlā’ī. Amsterdam: J. C. Grieben.Google Scholar
  4. — (2002). “Chioniades, Gregory.” In Oxford Dictionary of Byzantium, edited by Alexander P. Kazhdan, pp. 422–423. New York: Oxford University Press.Google Scholar
  5. Westerink, L. G. (1980). “La profession de foi de Gregoire Chioniades.” Revue des études byzantines 38: 233–245.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Katherine Haramundanis
    • 1
  1. 1.WestfordMAUSA