TheTrapezuntine emperors were the rulers of theEmpire of Trebizond, one of the successor states of theByzantine Empire founded after theFourth Crusade in 1204, untilits fall to theOttoman Empire in 1461. All but two of the Trapezuntine rulers belonged to theKomnenos dynasty, which had previously ruled the Byzantine Empire from 1081 to 1185. They initially claimed to represent the legitimate line of Roman emperors, in opposition to theLatin Empire inConstantinople, theLaskaris dynasty of theNicene Empire, and theKomnenos Doukas family ofEpirus andThessalonica. To emphasize their dynastic claim, Trapezuntine emperors from the late 13th century onwards styled themselves asMegas Komnenos (Μέγας Κομνηνός,lit. 'Grand Komnenos').[1]

Out of the Byzantine claimants that emerged in 1204 and thereafter, the Trapezuntine emperors, despite their illustrious descent, had perhaps the worst position. Not only were they far away from Constantinople in a peripheral province of the empire, but the reputation of the Komnenoi had been severely damaged by the detested last emperor of the dynasty,Andronikos I Komnenos (r. 1183–1185), grandfather of the first Trapezuntine emperorAlexios I (r. 1204–1222).[2] Though they continued to claim to be the legitimate rulers of the entire former Byzantine Empire for decades thereafter, conflict with the Nicene Empire and theSultanate of Rum in the early 13th century reduced the power of the Trapezuntine emperors. After thefall of Sinope to SultanKaykaus I in 1214, the Empire of Trebizond ceased to be a major contender for restoring the Byzantine Empire and became reduced to a small and local power.^[3]

After the Nicene Empire underMichael VIII Palaiologos retook Constantinople in 1261, the rulers of Trebizond continued to style themselves as 'Emperor andAutocrat of the Romans' (βασιλεὺς καὶ αὐτοκράτωρ Ῥωμαῖων), viewing thePalaiologos dynasty as just another family of usurpers. The Trapezuntine title was altered in 1282, 21 years later, to 'Emperor and Autocrat of all the East,the Iberians, and theTransmarine Provinces' (βασιλεὺς καὶ αὐτοκράτωρ πάσης Ἀνατολῆς, Ἰβήρων καὶ Περατείας) in order to placate Michael VIII Palaiologos afterJohn II Megas Komnenos (r. 1280–1297) of Trebizond married his daughter,Eudokia Palaiologina.^[4] Initially, the Palaiologoi emperors in Constantinople did not consider the Trapezuntine emperors to be emperors at all, instead typically referring to them as "princes of theLazes".^[5] However, later in the fourteenth century Trebizond's imperial status was recognized by Constantinople, although only as "Emperor of Trebizond" (βασιλεὺς Τραπεζοῦντος).

Although the Nicene emperors are generally regarded by modern historians to have been the legitimate Byzantine emperors from 1204 to therecapture of Constantinople in 1261, this is only because it was their successor state that eventually retook the city. The emperors in Trebizond and Thessalonica were no less legitimate emperors than those in Nicaea,^[3] the distinction only having been made retroactively as the Trapezuntines never succeeded in taking Constantinople and eventually gave up their claim to the Roman title. The line of Komnenos emperors in Trebizond lasted for more than 250 years, far longer than their dynasty had ruled from Constantinople, and outlasted the restoredByzantine Empire under the Palaiologos dynasty by eight years, before it toofell to theOttoman Empire.

Portrait	Name	Reign	Succession	Life details
	Alexios I Megas Komnenos Ἀλέξιος Κομνηνός	March/April 1204 – 1 February 1222 (17 years and 10/11 months) withDavid Komnenos (1204–1212)	Grandson ofAndronikos I Komnenos (Byzantine emperor 1183–1185). CapturedTrebizond with the aid ofTamar of Georgia.	c. 1182 – 1 February 1222 (aged 40) Died of natural causes[6]
	Andronikos I Gidos Ἀνδρόνικος Κομνηνός Γίδος	1 February 1222 – 1235 (13 years)	Son-in-law of Alexios I, possibly became emperor due to Alexios I's sons all being minors	Unknown – 1235 Died of unrecorded causes[7]
	John I Axouchos Ἰωάννης Κομνηνός Ἀξούχος[a]	1235 – 1237/1238 (2 or 3 years)	Son of Alexios I	Unknown – 1237/1238 Died while playingpolo[10]
	Manuel I Megas Komnenos "the Most Fortunate" Μανουήλ Κομνηνός	1237/1238 – March 1263 (25 or 26 years)	Son of Alexios I	Unknown – March 1263 Died of natural causes[11]
	Andronikos II Megas Komnenos Ἀνδρόνικος Κομνηνός	March 1263 – 1266 (3 years)	Son of Manuel I	Shortly before 1240/1242 – 1266 (aged approx. 26) Died of unrecorded causes[12]
	George Megas Komnenos "the Vagabond" Γεώργιος Μέγας Κομνηνός[b]	1266 – June 1280 (14 years)	Son of Manuel I	After 1253 – after 1284 Deposed by the Trapezuntine nobility in favor of John II and imprisoned. Later released, attempted to retake the throne in 1284.[14]
	John II Megas Komnenos Ἰωάννης Μέγας Κομνηνός	June 1280 – 16 August 1297 (17 years and 2 months)	Son of Manuel I	c. 1262/1263 – 16 August 1297 (aged approx. 35) Died of natural causes[15]
	Theodora Megale Komnene Θεοδώρα Μεγάλη Κομνηνή	Autumn 1284 – 1285 (less than a year)	Daughter of Manuel I, briefly usurped the throne from John II	Between 1242 and 1253 – unknown Fled Trebizond in 1285 and disappears from history thereafter, might have gone into exile inGeorgia[13]
	Alexios II Megas Komnenos Ἀλέξιος Μέγας Κομνηνός Παλαιολόγος[c]	16 August 1297 – 3 May 1330 (32 years, 8 months and 17 days)	Son of John II	Late 1283 – 3 May 1330 (aged 46) Died of thebubonic plague[16]
	Andronikos III Megas Komnenos Ἀνδρόνικος Μέγας Κομνηνός	3 May 1330 – 8 January 1332 (1 year, 8 months and 5 days)	Son of Alexios II	Unknown – 8 January 1332 Murdered two of his brothers upon his accession to the throne. Died of the bubonic plague like his father.[17]
	Manuel II Megas Komnenos Μανουήλ Μέγας Κομνηνός	8 January – 23 September 1332 (8 months and 15 days)	Son of Andronikos III	1323/1324 – 21 February 1333 (aged approx. 9) Deposed by his uncle Basil and was executed a few months later[18]
	Basil Megas Komnenos Βασίλειος Μέγας Κομνηνός	23 September 1332 – 6 April 1340 (7 years, 6 months and 14 days)	Son of Alexios II, usurped the throne from Manuel II	Unknown – 6 April 1340 Possibly poisoned by his first wife, Irene Palaiologina[19]
	Irene Palaiologina Εἰρήνη Παλαιολογίνα	6 April 1340 – 17 July 1341 (1 year, 3 months and 11 days)	Widow of Basil, illegitimate daughter of Byzantine emperorAndronikos III Palaiologos. Seized control of the government after Basil's death.	Unknown lifespan Deposed in favor of Anna and sent back to her family in Constantinople, fate thereafter unknown[20]
	Anna Anachoutlou Ἀννα Μεγάλη Κομνηνή Ἀναχουτλού[d]	17 July 1341 – August/September 1342 (1 year and 1/2 months)	Daughter of Alexios II. Confined to a monastery as anun, but escaped in 1341 and seized the throne with the aid of theLazes.	Unknown – 3 September 1342 Deposed in favor of John III and then strangled to death[22]
	John III Megas Komnenos Ἰωάννης Μέγας Κομνηνός	4 September 1342 – 3 May 1344 (1 year, 7 months and 29 days)	Grandson of John II. Supported as emperor by the army and theRepublic of Genoa.	1321/1322 – March 1362 (aged approx. 40) Deposed in favor of his father Michael. Died nearly twenty years later, possibly of theplague.[23]
	Michael Megas Komnenos Μιχαήλ Μέγας Κομνηνός	3 May 1344 – 13 December 1349 (5 years, 7 months and 10 days)	Son of John II and father of John III, proclaimed emperor after apalace coup against John III	1288/1289 – unknown Forced to abdicate and become a monk. Last attested in 1351 as an exile in Constantinople.[23]
	Alexios III Megas Komnenos Ἀλέξιος Μέγας Κομνηνός	13 December 1349 – 20 March 1390 (40 years, 3 months and 7 days)	Son of Basil. Exiled to Constantinople after his father's death in 1340. Proclaimed emperor with the support of the Byzantine emperorJohn VI Kantakouzenos after Michael's deposition.	5 October 1338 – 20 March 1390 (aged 51) The longest-reigning emperor. Died of natural causes.[24]
	Manuel III Megas Komnenos Μανουήλ Μέγας Κομνηνός	20 March 1390 – 5 March 1417 (26 years, 11 months and 13 days)	Son of Alexios III	16 December 1364 – 5 March 1417 (aged 52) Possibly murdered by his son Alexios IV[25]
	Alexios IV Megas Komnenos Ἀλέξιος Μέγας Κομνηνός	5 March 1417 – 26 April 1429 (11 years, 11 months and 23 days)	Son of Manuel III; co-emperor since 1395	c. 1379 – 26 April 1429 (aged approx. 50) Assassinated by his son John IV[26]
	John IV Megas Komnenos Ἰωάννης Μέγας Κομνηνός	26 April 1429 – April 1460 (31 years) withAlexander Megas Komnenos (c. 1451–1459)	Son of Alexios IV	Before 1403 – April 1460 Saw the end of the Byzantine Empire. Died of natural causes[27]
	Alexios V Megas Komnenos Ἀλέξιος Σκαντάριος Μέγας Κομνηνός	April 1460 (very briefly)	Son of the co-emperor Alexander, a son of Alexios IV	1454 – 1 November 1463 (aged approx. 9) Deposed by his uncle David. Later executed by the Ottomans alongside him.[28]
	David Megas Komnenos Δαβίδ Μέγας Κομνηνός	April 1460 – 15 August 1461 (1 year and 3 months)	Son of Alexios IV	c. 1408 – 1 November 1463 (aged approx. 55) Settled inAdrianople in exile after theconquest of Trebizond by theOttoman Empire. Later accused of treachery and executed.[29]

• List of Trapezuntine usurpers
• List of empresses of the Byzantine successor states – for the consorts of the emperors
• List of Byzantine emperors – for the Byzantine emperors, from whom the Trapezuntine emperors claimed succession
• List of Roman emperors – for a list of emperors beginning with Augustus
• Succession of the Roman Empire – for various claims concerning the succession to the Roman Empire

• Jackson Williams, Kelsey (2007)."A Genealogy of the Grand Komnenoi of Trebizond".Foundations: The Journal of the Foundation for Mediaeval Genealogy.2 (3):171–189.hdl:10023/8570.ISSN 1479-5078.
• Kazhdan, Alexander, ed. (1991).Oxford Dictionary of Byzantium. Oxford: Oxford University Press.ISBN 978-0-19-504652-6.(seeODB)
• Kuršanskis, Michel (1979)."La descendance d'Alexis IV, empereur de Trébizonde. Contribution à la prosopographie des Grands Comnènes".Revue des études byzantines.37:239–247.doi:10.3406/rebyz.1979.2098.
• Macrides, Ruth (1979). "What's in the name 'Megas Komnenos'?".Archeion Pontou.35:238–245.
• Miller, William (1923). "The Empire of Nicaea and the Recovery of Constantinople". InBury, J. B. (ed.).The Cambridge Medieval History: Volume IV: The Eastern Roman Empire (717–1453). Cambridge: Cambridge University Press.OCLC 716982674.
• Miller, William (1926).Trebizond: The Last Greek Empire. New York: MacMillan.OCLC 1546756.
• Treadgold, Warren (1997).A History of the Byzantine State and Society. Stanford, California:Stanford University Press.ISBN 0-8047-2630-2.
• Zehiroglu, Ahmet M. (2016).Trabzon Imparatorlugu (in Turkish). Vol. 2. Lazika Yayın Kollektifi.ISBN 978-6054567522.

• Lists of monarchs
• Byzantine emperors
• Lists of medieval people
• Monarchs of Trebizond
• Byzantine Empire-related lists

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• Short description is different from Wikidata
• Articles containing Greek-language text
• CS1 Turkish-language sources (tr)