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Nicephorus Gregoras (/ɡrɪˈɡɔːrəs/; Greek: Νικηφόρος Γρηγορᾶς, Nikephoros Gregoras; c. 1295 – 1360) was a Byzantine astronomer, historian, and theologian.

Life

Gregoras was born at Heraclea Pontica. At an early age he settled at Constantinople, where his reputation for learning brought him under the notice of Andronicus II Palaeologus, by whom he was appointed chartophylax (keeper of the archives). In 1326 Gregoras proposed (in a treatise which remains in existence) certain reforms in the calendar, which the emperor refused to carry out for fear of disturbances; nearly two hundred years later they were introduced by Gregory XIII on almost the same lines.

When Andronicus was dethroned (1328) by his grandson Andronicus III Palaeologus, Gregoras shared his downfall and retired into private life. Attacked by Barlaam of Calabria, he was with difficulty persuaded to come forward and meet him in a war of words, in which Barlaam was bested. This greatly enhanced his reputation and brought him a large number of pupils.

Gregoras remained loyal to the elder Andronicus to the last, but after his death he succeeded in gaining the favour of his grandson, by whom he was appointed to conduct the unsuccessful negotiations (for a union of the Greek and Latin churches) with the ambassadors of Pope John XXII (1333).

Beginning in 1346, Gregoras took an important part in the Hesychast controversy at the encouragement of the Empress Anna, by publishing a tract in which he staunchly opposed Gregorius Palamas, the chief supporter of the doctrine. Although he persuaded some prominent churchmen, such as Joseph of Ganos and Arsenios of Tyre, his opinion was opposed to those of Emperor John VI Cantacuzene. Although he presented his views at length at the synod of 1351, that synod declared his views heretical and the doctrines of Palamas orthodox. He and other dissidents were given the opportunity to recant, and he refused.^[1]

Although the doctrine of Gregorius Palamas came to be accepted by the majority of the Orthodox Church, Gregoras persisted in campaigning against what he considered a heretical doctrine forced upon the Church by a robber council. He became a monk and devoted himself to campaigning against the Palamites, destroying his friendship with John Cantacuzene. He was first placed under house arrest, then confined to the Chora Monastery. When he was released from the monastery in 1354, Gregoras returned to his preaching and denunciations. Gregoras devotes two of the 37 books of his Roman History on his objections to the doctrine of Palamas; according to Donald Nicols, "It is disappointing that Gregoras the philosopher and historian should have degenerated into a ranting polemicist in his declining years."^[2]

Writings

Gregoras' chief work is his Byzantine History, in 37 books, covering the years 1204 to 1359. It partly supplements and partly continues the work of George Pachymeres. Gregoras shows considerable industry, but his style is pompous and affected. This work and that of John Cantacuzene supplement and correct each other, and should be read together.

The other writings of Gregoras, which (with a few exceptions) still remain unpublished, attest his great versatility. Amongst them may be mentioned a history of the dispute with Palamas; biographies of his uncle and early instructor John, metropolitan of Heraclea, and of the martyr Codratus of Antioch; funeral orations for Theodore Metochites, and the two emperors Andronicus; commentaries on the wanderings of Odysseus and on Synesius's treatise on dreams;^[3] tracts on orthography and on words of doubtful meaning; a philosophical dialogue called Phlorentius or Concerning Wisdom; astronomical treatises on the date of Easter, on the preparation of the astrolabe and on the predictive calculation of solar eclipses;^[4] and an extensive correspondence.^[5]

Editions: in Bonn Corpus Scriptorum Historiae Byzantinae, by L. Schopen and I. Bekker, with life and list of works by J. Boivin (1829–1855); J. P. Migne, Patrologia Graeca, cxlviii., cxlix.; see also Karl Krumbacher, Geschichte der byzantinischen Litteratur (1897).

Notes

^ Donald Nicol, The Last Centuries of Byzantium, 1261-1453, second edition (Cambridge: University Press, 1993), pp. 232f

^ Nicol, Last Centuries, p. 234

^ Niceforo Gregora, Explicatio in librum Synesii de insomniis, a cura di P. Pietrosanti, Collana Pynakes, Levante, 1999

^ J. Mogenet, A. Tihon, R. Royez, A. Berg, Nicéphore Grégoras - Calcul de l’éclipse de soleil du 16 Juillet 1330, Corpus des astronomes byzantins, I, Gleben, 1983

^ I. Sevcenko, Some autographs of Nicephore Gregoras in Recueil des travaux de l'Institut d'études byzantines, VIII, pp. 435-450.

References

This article incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "Gregoras, Nicephorus" . Encyclopædia Britannica. 12 (11th ed.). Cambridge University Press..mw-parser-output cite.citationfont-style:inherit.mw-parser-output .citation qquotes:"""""""'""'".mw-parser-output .citation .cs1-lock-free abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-subscription abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registrationcolor:#555.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration spanborder-bottom:1px dotted;cursor:help.mw-parser-output .cs1-ws-icon abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center.mw-parser-output code.cs1-codecolor:inherit;background:inherit;border:inherit;padding:inherit.mw-parser-output .cs1-hidden-errordisplay:none;font-size:100%.mw-parser-output .cs1-visible-errorfont-size:100%.mw-parser-output .cs1-maintdisplay:none;color:#33aa33;margin-left:0.3em.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-formatfont-size:95%.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-leftpadding-left:0.2em.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-rightpadding-right:0.2em

External links

The Greatest Byzantine Astronomer Nicephoros Gregoras and Serbs^{[permanent dead link]}

Greek Opera Omnia by Migne Patrologia Graeca with analytical indexes

[1] Donald Nicol, The Last Centuries of Byzantium, 1261-1453, second edition (Cambridge: University Press, 1993), pp. 232f

[2] Nicol, Last Centuries, p. 234

[3] Niceforo Gregora, Explicatio in librum Synesii de insomniis, a cura di P. Pietrosanti, Collana Pynakes, Levante, 1999

[4] J. Mogenet, A. Tihon, R. Royez, A. Berg, Nicéphore Grégoras - Calcul de l’éclipse de soleil du 16 Juillet 1330, Corpus des astronomes byzantins, I, Gleben, 1983

[5] I. Sevcenko, Some autographs of Nicephore Gregoras in Recueil des travaux de l'Institut d'études byzantines, VIII, pp. 435-450.

v t e Byzantine historians
5th century	Annianus of Alexandria Eunapius John Rufus Malchus Olympiodorus of Thebes Panodorus of Alexandria Philostorgius Priscus Sabinus of Heraclea Socrates of Constantinople Sozomen Theodoret
6th century	Agathias Cyril of Scythopolis Eustathius of Epiphania Evagrius Scholasticus Hesychius of Miletus John of Ephesus John of Epiphania Joshua the Stylite Jordanes John Malalas Liberatus of Carthage Marcellinus Comes Menander Protector Nonnosus Peter the Patrician Procopius Theodorus Lector Theophanes of Byzantium Zacharias Rhetor Zosimus
7th century	Chronicon Paschale John of Antioch Trajan the Patrician Theophylact Simocatta
8th century	Hippolytus of Thebes
9th century	Theophanes the Confessor George Syncellus Nikephoros I of Constantinople George Hamartolos Scriptor Incertus
10th century	Chronicle of Monemvasia Constantine VII Joseph Genesius John Kaminiates Leo the Deacon Pseudo-Simeon Symeon the Metaphrast Theophanes Continuatus
11th century	Michael Attaleiates George Kedrenos Michael Psellos John Skylitzes John Xiphilinus Yahya of Antioch
12th century	Nikephoros Bryennios the Younger Niketas Choniates Eustathius of Thessalonica Michael Glykas Anna Komnene John Kinnamos Constantine Manasses Joannes Zonaras
13th century	George Akropolites Theodore Skoutariotes
14th century	Nicephorus Gregoras Nikephoros Kallistos Xanthopoulos John VI Kantakouzenos George Kodinos George Pachymeres Michael Panaretos
15th century	John Anagnostes John Cananus Laonikos Chalkokondyles Michael Critobulus Doukas George Sphrantzes

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