Background The city of Trebizond was the capital of the theme of Chaldia, which according to the 10th century
Arab geographer
Abulfeda was regarded as being largely a
Lazican port. Chaldia had already shown its separatist tendencies in the 10th and 11th centuries when it came under the control of a local leader named
Theodore Gabras, who according to
Anna Komnene regarded Trebizond and its hinterlands "as a prize which had fallen to his own lot" and conducted himself as an independent prince. The Byzantine Emperor
Alexios I Komnenos confirmed him as governor of Chaldia but kept his son at Constantinople as a
hostage for his good conduct. Nevertheless, Gabras proved himself a worthy guardian by repelling a
Georgian attack on Trebizond. One of his successors,
Gregory Taronites, also rebelled with the aid of the sultan of Cappadocia, but he was defeated and imprisoned, only to be made governor once more. Another successor to Theodore was
Constantine Gabras, whom Niketas describes as ruling Trebizond as a tyrant, and whose actions led Emperor
John II Komnenos in 1139 to lead an expedition against him. Although that effort came to nothing, this was the last rebel governor known to recorded history before the events of 1204.
Foundation The empire traces its foundation to April 1204, when
Alexios Komnenos and his brother David took advantage of the preoccupation of the central Byzantine government with the encampment of the soldiers of the
Fourth Crusade outside their walls (June 1203 – mid-April 1204) and seized the city of
Trebizond and the surrounding province of Chaldia with troops provided by their relative,
Tamar of Georgia. Henceforth, the links between Trebizond and
Georgia remained close, but their nature and extent have been disputed. However some scholars believe that the new state was subject to Georgia, at least in the first years of its existence, at the beginning of the 13th century. of Trebizond, which was converted from a museum to mosque in 2013. Both men were the grandsons of the last
Komnenian Byzantine emperor,
Andronikos I Komnenos, by his son
Manuel Komnenos and
Rusudan, daughter of
George III of Georgia. Andronikos I had been deposed by
Isaac II Angelos, while Manuel was blinded (a traditional Byzantine punishment for treason) and died not long after. Alexios and his brother, David, ended up at the court of Queen Tamar of Georgia, who gave them military support to return to Byzantine territory. Vasiliev explains that she had been motivated to do so after the Emperor
Alexios III Angelos stole the gifts Tamar had given to a group of visiting monks as they passed through Constantinople. After marching from Georgia, and with the help of their paternal aunt Queen Tamar, Alexios and David occupied Trebizond in April 1204. That same month Alexios was proclaimed emperor at the age of 22, an act considered by later writers as the moment the Empire of Trebizond was founded. Alexios ruled his new empire for the next eighteen years, until his death in February 1222. The throne then passed to his son-in-law
Andronikos I Gidos Komnenos.
Up to the civil wars , his mother Eirene and his wife Theodora,
Panagia Theoskepastos Monastery he granted to the
Dionysiou monastery on
Mount Athos. The date Alexios entered Trebizond may be narrowed down even further.
Sergey Karpov has identified a lead seal of Alexios, on one side "the image of a
strategos in the peaked helmet led by hand by St. George" with the inscriptions Ἀλέξιος ὁ Κομνηνός [Alexios Komnenos] and Ὁ Ἅ(γιος) Γεώργιος [Saint George] on either side; on the obverse is a scene of Ἡ Ἁγία Ἀνάστασις [The Holy Resurrection] with the corresponding inscription. Karpov interprets the significance of this image and the inscription as portraying the most important achievement of his life, St. George inviting the victorious prince to enter Trebizond and opening the gates of the city with his left hand. The importance of St. George was that Easter—the date of the Resurrection—in 1204 fell on 25 April, while the memorial date of St. George was 23 April. "So I dared to assume," writes Karpov, "that the seal points out the date of the capture of Trebizond." Vasiliev points out that the brothers occupied Trebizond too early to have done so in response to the Crusaders capturing Constantinople; Alexios and David began their march on Trebizond before news of the
Sack of Constantinople on 13 April 1204 could reach either Trebizond or Georgia. According to Vasiliev, however, their original intention was not to seize a base from which they could recover the capital of the Byzantine Empire, but rather to carve out of the Byzantine Empire a
buffer state to protect Georgia from the
Seljuk Turks. Kuršanskis, while agreeing with Vasiliev that Tamar was motivated by revenge for Alexios Angelos's insult, proposed a more obvious motivation for the brother's return to Byzantine territory: they had decided to raise the banner of revolt, depose Alexios Angelos, and return the imperial throne to the
Komnenos dynasty. However, not long after they had gained control of Trebizond and the neighboring territories, news of the Latin conquest of Constantinople reached them, and the brothers entered the competition for recovery of the imperial city against
Theodore I Laskaris in western Anatolia (ruler of the "
Empire of Nicaea") and
Michael Komnenos Doukas in mainland Greece (ruler of the "
Despotate of Epirus"). For most of the 13th century Trebizond was in continual conflict with the
Seljuk Sultanate of Rûm and later with the Ottoman Turks, as well as Constantinople and the
Republic of Genoa. It was an empire more in title than in fact, surviving by playing its rivals against each other, and offering the daughters of its rulers, who were famed for their beauty, for
marriage with generous
dowries, especially with the
Turkish rulers of inland
Anatolia. The common view is that the Empire of Trebizond relied heavily upon wealth gained from its trade with Genoese and
Venetian merchants to secure for itself the resources necessary to maintain independence. The second son of Alexios I,
Manuel I (1238–1263), preserved internal security and acquired the reputation of a great commander. His accomplishments included capturing
Sinope in 1254. He was the first ruler to issue silver coins, which were known as
aspers. The
destruction of Baghdad by
Hulagu Khan in 1258 diverted the western terminus of the
Silk Road north to the Black Sea, and due to its link with their local capital at
Tabriz, Trebizond accumulated tremendous wealth under the suzerainty of the
Mongols. Western travelers used Trebizond as their starting point for journeys into Asia; these travelers included
Marco Polo, who returned to Europe in 1295 by way of Trebizond. The troubled reign of Manuel's youngest son
John II (1280–1297) included a reconciliation with the restored Byzantine Empire and the end of Trapezuntine claims to Constantinople. Trebizond enjoyed a period of wealth and influence during the long reign of John's eldest son
Alexios II (1297–1330). During his reign, the city of
Erzurum was also under Trebizond Empire occupation for a while around the 1310s.
From the civil wars to the end of the 14th century Following the death of Alexios II, Trebizond suffered a period of repeated imperial depositions and assassinations, despite a short period of stability under his youngest son
Basil (1332–1340). Two groups struggled for ascendency: the
Scholaroi, who have been identified as being pro-Byzantine, and the
Amytzantarantes, who were identified as representing the interests of the native
archontes. The years 1347–1348 marked the apex of this lawless period. The Turks took advantage of the weakness of the empire, conquering
Oinaion and besieging Trebizond, while the Genoese seized
Kerasus. In addition, the
Black Death spread from
Caffa to ravage Trebizond and other Pontic cities. Bending under the weight of the disasters that accumulated on his states, Emperor
Michael abdicated in 1349 in favor of his nephew,
Alexios III, who gradually brought the partisans of both factions under control. Under the rule of Alexios III, Trebizond was considered an important trade center and was renowned for its great wealth and artistic accomplishment. It was at this point that their famous diplomatic strategy of marrying the princesses of the Grand Komnenos to neighboring Turkish dynasts began. However, Anthony Bryers has argued against thinking this empire was a wealthy polity, stating that while the income from taxes levied on this trade was "by Byzantine standards" substantial, as much as three quarters of the income of the Emperor came from land "either directly from the imperial estates or indirectly from taxes and tithes from other lands."
15th century The last years of the fourteenth century were characterized by the increasing Turkish threat. This threat was not from the small Turkmen emirates that bordered Trebizond, but from the dynasty of the
Osmanli, a new Turkish power emerging from western Anatolia that would soon consolidate the
Ottoman Empire. Although their expansion was temporarily checked by
Tamerlane at the
Battle of Ankara in 1402, by the 1430s the Ottomans had recovered their fortunes, seizing large segments of Greece and finally capturing Constantinople itself
on 29 May 1453.
Manuel III (1390–1417), the second son and successor of Alexios III, had allied himself with Tamerlane, but the mighty conqueror soon left Anatolia, and the empire he had built crumbled with his death. Manuel's son
Alexios IV (1417–1429) continued the tradition of
political marriages by marrying two of his daughters to rulers of two neighboring Muslim empires:
Jihan Shah, khan of the
Kara Koyunlu, and
Ali Beg, khan of the
Ak Koyunlu. His eldest daughter Maria became the third wife of the Byzantine Emperor
John VIII Palaiologos. Alexios IV's eldest son,
John IV (1429–1459), could not help but see that his Empire would soon share the fate of Constantinople. The Ottoman sultan
Murad II first attempted to take the capital by the sea in 1442, but high surf made the landings difficult and the attempt was repulsed. While Murad's son and successor,
Mehmed II, was away laying siege to
Belgrade in 1456, the Ottoman governor of
Amasya attacked Trebizond, and although defeated, he took many prisoners and extracted a heavy tribute. A Genoese document records the seizure of one of their ships at that port in 1437 by a military Galley on the orders of Emperor John IV. John IV prepared for the eventual assault by forging alliances. He sent an envoy to the
Council of Florence in 1439, the humanist
George Amiroutzes, which resulted in the proclamation of the Union of the Catholic and Orthodox Churches, but this proclamation brought little help. He gave his daughter
Theodora (also known by the name of Despina Khatun) to the son of his brother-in-law,
Uzun Hasan, khan of the
Ak Koyunlu, in return for his promise to defend Trebizond. He also secured promises of help from the Turkish
emirs of
Sinope and
Karamania, and from the king and princes of Georgia. Through Theodora and the daughter of
Alexios IV of Trebizond (also named Theodora), the
Safavid dynasty of
Iran that succeeded the Ak Koyunlu, would be of direct partial
Pontic Greek ethnicity from its very beginning,
Ismail I being the
grandson of Theodora. After John's death in 1459, his brother
David came to power. David intrigued with various European powers for help against the Ottomans, speaking of wild schemes that included the conquest of
Jerusalem. Mehmed II eventually heard of these intrigues and was further provoked to action by David's demand that Mehmed remit the tribute imposed on his brother. == Culture ==