Hioniad Gregory( Byzantine physician, astrologer and astronomer.)
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Biography Hioniad Gregory
(Chioniades) (Ser. XIII in. - Ca. 1330) A key figure in the revival of interest in astrology in the Empire of Trebizond and Constantinople in the first half of XIV. X. was a physician in Constantinople, and obtained great fame in his profession. In parallel, he was interested in mathematics, astrology and astronomy. Prior to 1295, Mr.. He arrived in Trebizond and obtained from the Emperor John II (1280 - 1297) a large cash grant to travel to Persia, where at this time astrology has successfully developed. Having studied in Tabriz, capital of the Mongols in 1295 - 1296 he. by astronomer and astrologer Shams al-Din al-Bukhari (11/06/1254, Bukhara -?), X. returned to Constantinople, where he made a series of translations of Persian astronomiko-astrological works. He visited in Trebizond, brought there books on astronomy and astrology, which he translated into Greek and provided comments, both written and oral, teaching students. H. established a school in Constantinople and Trebizond, significantly enriched Byzantine astronomy and astrology in general. Ok. 1302 g. H. again went to Tabriz, this time as an Orthodox bishop. School X. at Trebizond continued to exist after his death. In 1320-30-ies. cleric Manuel gave lessons on the Persian books and manuals, brought X. Continued and compiling astronomical tables. It is noteworthy that astronomy is mainly served the purpose of medical astrology: it involved people practicing healing and for the sake of healing, these were H., Andrew Livadin, George Hrisokokk.
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