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|Latin Empire of Constantinople
Empire of Romania
Arms of the Latin Empire of Constantinople
The Latin Empire with its vassals (in yellow) and the Greek successor states of the Byzantine Empire (in red) after the Treaty of Nymphaeum in 1214. The borders are very uncertain.
|Languages||Latin, Old French (official)
|Religion||Roman Catholic (official)
Greek Orthodox (popular)
|-||1228–1237||John of Brienne (regent)|
|Historical era||High Middle Ages|
|-||1204 est.||350,000 km² (135,136 sq mi)|
The Latin Empire or Latin Empire of Constantinople (original Latin name: Imperium Romaniae, "Empire of Romania") is the name given by historians to the feudal Crusader state founded by the leaders of the Fourth Crusade on lands captured from the Byzantine Empire. It was established after the capture of Constantinople in 1204 and lasted until 1261. The Latin Empire was intended to supplant as titular successor to the Roman Empire in the east, with a Western Roman Catholic emperor enthroned in place of the Eastern Orthodox Roman emperors. Baldwin IX, Count of Flanders, was crowned the first Latin emperor as Baldwin I on 16 May 1204. The Latin Empire failed to attain political or economic dominance over the other Latin powers that had been established in former Byzantine territories in the wake of the Fourth Crusade, especially Venice, and after a short initial period of military successes it went into a steady decline. Weakened by constant warfare with the Bulgarians and the unconquered sections of the empire, it eventually fell when Byzantines recaptured Constantinople under Emperor Michael VIII Palaiologos in 1261. The last Latin emperor, Baldwin II, went into exile, but the imperial title survived, with several pretenders to it, until the 14th century.
The original name of this state in the Latin language was Imperium Romaniae ("Empire of Romania"). This name was used based on the fact that the common name for the Roman Empire in this period had been Romania (Ῥωμανία, "Land of the Romans").
The names Byzantine and Latin were not contemporary terms. They were invented much later by historians seeking to differentiate between the classical period of the Roman Empire, the medieval period (label the Byzantine Empire) and the late medieval Latin Empire, all of which called themselves "Roman." The term Latin has been used because the crusaders (Franks, Venetians, and other westerners) were Roman Catholic and used Latin as their liturgical and scholarly language. It is used in contrast to the Eastern Orthodox locals who used Greek in both liturgy and common speech.
The crusaders agreed to divide up Byzantine territory. In the Partitio terrarum imperii Romaniae, signed on 1 October 1204, three eighths — including Crete and other islands — went to the Republic of Venice. The Latin Empire claimed the remainder, and did exert control over:
- areas of Greece, divided into vassal fiefs:
- the short-lived duchies of:
The Doge of Venice did not rank as a vassal to the Empire, but his position in control of three-eighths of its territory and of parts of Constantinople itself ensured Venice's influence in the Empire's affairs. However, much of the former Byzantine territory remained in the hands of rival successor states led by Byzantine Greek aristocrats, such as the Despotate of Epirus, the Empire of Nicaea, and the Empire of Trebizond, each bent on reconquest from the Latins.
The crowning of Baldwin (16 May 1204) and the establishment of the Latin Empire had the curious effect of creating three so-called Roman Empires in Europe at the same time, the others being the Holy Roman Empire and the remnants of the Byzantine Empire (the direct successor of the ancient Roman Empire). None of these polities actually controlled the city of Rome, which remained under the temporal authority of the Pope.
In Asia Minor 
The initial campaigns of the crusaders in Asia Minor resulted in the capture of most of Bithynia by 1205, with the defeat of the forces of Theodore I Laskaris at Poemanenum and Prusa. Latin successes continued, and in 1207 a truce was signed with Theodore, newly proclaimed Emperor of Nicaea. The Latins inflicted a further defeat on Nicaean forces at the Rhyndakos river in October 1211, and three years later the Treaty of Nymphaeum (1214) recognized their control of most of Bithynia and Mysia.
The peace was maintained until 1222, at which point the resurgent power of Nicaea felt sufficiently strong enough to challenge the Latin Empire, by that time weakened by constant warfare in its European provinces. At the battle of Poimanenon in 1224, the Latin army was defeated, and by the next year Emperor Robert of Courtenay was forced to cede all his Asian possessions to Nicaea, save Nicomedia and the territories directly across Constantinople. Nicaea turned also to the Aegean, capturing the islands awarded to the empire. In 1235, finally, the last Latin possessions fell to Nicaea.
In Europe 
Unlike in Asia, where the Latin Empire faced only an initially weak Nicaea, in Europe it was immediately confronted with a powerful enemy: the Bulgarian tsar Kaloyan. When Baldwin campaigned against the Byzantine lords of Thrace, they called upon Kaloyan for help. At the Battle of Adrianople on 14 April 1205, the Latin heavy cavalry and knights were crushed by Kaloyan's troops, and Emperor Baldwin was captured. He was imprisoned in the Bulgarian capital Tarnovo until his death later in 1205. Kaloyan was murdered a couple of years later (1207) during a siege of Thessalonica, and the Bulgarian threat conclusively defeated with a victory the following year, which allowed Baldwin's successor, Henry of Flanders, to reclaim most of the lost territories in Thrace until 1210, when peace was concluded with the marriage of Henry to Maria of Bulgaria, tsar Kaloyan's daughter.
At the same time, another Greek successor state, the Despotate of Epirus, under Michael I Komnenos Doukas, posed a threat to the empire's vassals in Thessalonica and Athens. Henry demanded his submission, which Michael provided, giving off his daughter to Henry's brother Eustace in the summer of 1209. This alliance allowed Henry to launch a campaign in Macedonia, Thessaly and Central Greece against the rebellious Lombard lords of Thessalonica. However, Michael's attack on the Kingdom of Thessalonica in 1210 forced him to return north to relieve the city and to force Michael back into submission.
In 1214 however, Michael died, and was succeeded by Theodore Komnenos Doukas, who was determined to capture Thessalonica. On 11 June 1216, while supervising repairs to the walls of Thessalonica, Henry died, and was succeeded by Peter of Courtenay, who himself was captured and executed by Theodore the following year. A regency was set up in Constantinople, headed by Peter's widow, Yolanda of Flanders, until 1221, when her son Robert of Courtenay was crowned Emperor. Distracted by the renewed war with Nicaea, and waiting in vain for assistance from Pope Honorius III and the King of France Philip II, the Latin Empire was unable to prevent the final fall of Thessalonica to Epirus in 1224. Epirote armies then conquered Thrace in 1225–26, appearing before Constantinople itself. The Latin Empire was saved for a time by the threat posed to Theodore by the Bulgarian tsar Ivan II Asen, and a truce was concluded in 1228.
Decline and fall 
After Robert of Courtenay died in 1228, a new regency under John of Brienne was set up. After the disastrous Epirote defeat by the Bulgarians at the Battle of Klokotnitsa, the Epirote threat to the Latin Empire was removed, only to be replaced by Nicaea, which started acquiring territories in Greece. Emperor John III Doukas Vatatzes of Nicaea concluded an alliance with Bulgaria, which in 1235 resulted in a joint campaign against the Latin Empire, and an unsuccessful siege of Constantinople the same year. In 1237, Baldwin II attained majority and took over the reins of a much-diminished state. The empire's precarious situation forced him to travel often to Western Europe seeking aid, but largely without success. In order to gain money, he was forced to resort to desperate means, from removing the lead roofs of the Great Palace and selling them, to handing over his only son, Philip, to Venetian merchants as a guarantee for a loan.
By 1247, the Nicaeans had effectively surrounded Constantinople, with only the city's strong walls holding them at bay, and the Battle of Pelagonia in 1258 signaled the beginning of the end of Latin predominance in Greece. Thus, on 25 July 1261, with most of the Latin troops away on campaign, the Nicaean general Alexios Strategopoulos found an unguarded entrance to the city, and entered it with his troops, restoring the Byzantine Empire for his master, Michael VIII Palaiologos.
Titular claimants 
For about a century thereafter, the heirs of Baldwin II continued to use the title of Emperor of Constantinople, and were seen as the overlords of the various remaining Latin states in the Aegean. They exercised effective authority in Greece only when actually ruling as princes of Achaea, as in 1333–83. Although they are generally regarded as titular emperors, the continued existence of Latin states in the Aegean that recognized them as their suzerains makes the term a misnomer; a more accurate description would be emperors-in-exile.
Organization and society 
The empire was formed and administrated on Western European feudal principles, incorporating some elements of the Byzantine bureaucracy. The emperor was assisted by a council, composed of the various barons, the Venetian podestà and his six-member council. This council had a major voice in the governance of the realm, especially in the periods of regency, where the Regent (moderator imperii) was dependent on their consent to rule. The podesta, likewise, was an extremely influential member, being practically independent of the emperor. He exercised authority over the Venetian quarters of Constantinople and Pera and the Venetian dominions within the empire, assisted by a separate set of officials. His role was more that of an ambassador and vicegerent of Venice than a vassal to the empire.
The Latins did not trust the professional Greek bureaucracy, and in the immediate aftermath of the conquest completely dismantled the Greek economic administration of the areas they controlled. The result was disastrous, disrupting all forms of production and trade. Almost from its inception the Latin Empire was sending requests back to the papacy for aid. For a few years, the major commodities it exported from the surrounding region of Thrace were wheat and furs; it also profited from Constantinople's strategic location on major trade routes. While the empire showed some moderate vitality while Henry was alive, after his death in 1216 there was a major deficit in leadership. By the 1230s, Constantinople - even with its drastically reduced population - was facing a major shortage of basic foodstuffs. In several senses, the only significant export on which the economy of the Latin Empire had any real basis was the sale of relics back to Western Europe which had been looted from Greek churches. For example, Emperor Baldwin II sold the relic of the Crown of Thorns while in France trying to raise new funds.
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The elite of the empire were the Frankish and Venetian lords, headed by the emperor, the barons and the lower-ranking vassals and liege lords, including many former Byzantine aristocrats. The bulk of the people were Orthodox Greeks, still divided according to the Byzantine system in income classes based on land ownership.
As with all Latin states, the Orthodox hierarchy was replaced by Catholic prelates, but not suppressed. An expansive Catholic hierarchy was established, under the dual supervision of the Latin archbishop of Constantinople and the Papal legate, until the two offices were merged in 1231. Catholic monastic orders, such as the Cistercians, the Dominicans and the Franciscans were established in the empire. The Orthodox clergy retained its rites and customs, including its right to marriage, but was demoted to a subordinate position, subject to the local Latin bishops.
- On the long history of "Romania" as a territorial name for the Roman and (later) Byzantine empires, see R.L. Wolff, "Romania: The Latin Empire of Constantinople". In: Speculum, 23 (1948), pp. 1-34.
- Fine, John Van Antwerp (1994), The Late Medieval Balkans: A Critical Survey from the Late Twelfth Century to the Ottoman Conquest, University of Michigan Press, ISBN 978-0-472-08260-5
- Geanakoplos, Deno John (1959), Emperor Michael Palaeologus and the West, 1258–1282: A Study in Byzantine-Latin Relations, Harvard University Press
- Jacobi, David (1999), "The Latin Empire of Constantinople and the Frankish States in Greece", in Abulafia, David, The New Cambridge Medieval History, Volume V: c. 1198–c. 1300, Cambridge University Press, pp. 525–542, ISBN 0-521-36289-X
- Miller, William (1908), The Latins in the Levant, a History of Frankish Greece (1204–1566), New York: E.P. Dutton and Company
- Nicol, Donald MacGillivray (1993), The Last Centuries of Byzantium, 1261–1453, Cambridge, United Kingdom: Cambridge University Press, ISBN 0-521-43991-4
- Setton, Kenneth M. (1976), The Papacy and the Levant, 1204–1571: Volume I, The Thirteenth and Fourteenth Centuries, DIANE Publishing, ISBN 0-87169-114-0
|Wikimedia Commons has media related to: Latin Empire|
- The Latin Occupation in the Greek Lands - The Latin Empire, from the Foundation of the Hellenic World