Kingdom of Thessalonica
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|Kingdom of Thessalonica|
|Vassal of the Latin Empire|
Kingdom of Thessalonica (1204).
|Religion||Roman Catholic officially,
Eastern Orthodox popularly
|King of Thessalonica|
|•||1204–1207||Boniface of Montferrat|
|•||1207–1224||Demetrius of Montferrat|
|Historical era||Middle Ages|
|•||Fall of Thessalonica to Epirus||1224|
After the fall of Constantinople to the crusaders in 1204, Boniface of Montferrat, the leader of the crusade, was expected by both the Crusaders and the defeated Byzantines to become the new emperor. However, the Venetians felt that Boniface was too closely tied to the Byzantine Empire, as his brother Conrad had married into the Byzantine royal family. The Venetians wanted an emperor whom they could control more easily, and with their influence, Baldwin of Flanders was elected as emperor of the new Latin Empire.
Boniface reluctantly accepted this, and set out to conquer Thessalonica, the second-largest Byzantine city after Constantinople. At first he had to compete with Emperor Baldwin, who also wanted the city. He then went on to capture the city later in 1204 and set up a kingdom there, subordinate to Baldwin, although the title of "king" was never officially used. Late 13th and 14th century sources suggest that Boniface based his claim to Thessalonica on the statement that his younger brother Renier had been granted Thessalonica on his marriage to Maria Komnene in 1180.
In 1204–05, Boniface was able to extend his rule south into Greece, advancing through Thessaly, Boeotia, Euboea, and Attica. The boundaries of the actual Kingdom of Thessalonica seem to have extended only up to Domokos, Pharsalus, and Velestino: southern Thessaly, with the towns of Zetounion and Ravennika, was under governors appointed by the Latin Emperor, and the principalities of southern Greece were only Boniface's feudal vassals. Emperor Henry of Flanders' expedition against the rebellious Lombard barons of Thessalonica in 1208–09, however, ended the feudal dependency of the southern principalities—the Duchy of Athens, the Marquisate of Bodonitsa, the Lordship of Salona, and the Triarchy of Negroponte—on Thessalonica, replacing it with direct imperial suzerainty.
The Lombard Rebellion
Boniface's rule lasted less than two years before he was ambushed by Tsar Kaloyan of Bulgaria and killed on September 4, 1207. The kingdom passed to Boniface's son Demetrius, who was still a baby, so actual power was held by various minor nobles of Lombard origin. These nobles, under the regent Oberto, began plotting to place William VI of Montferrat, Boniface's elder son, on the throne, and openly defied the Latin Emperor Henry of Flanders. Henry marched against them in 1209 and forced their submission. As a result, Henry's brother Eustace then became regent for Demetrius.
War with Epirus and fall
Taking advantage of this situation, Michael I of Epirus, a former ally of Boniface, attacked the kingdom in 1210, as did the Bulgarians. Henry of Flanders eventually defeated both, but after Michael's death in 1214, his brother and successor Theodore began anew the assault on the kingdom. Over the next nine years Theodore gradually conquered all of Thessalonica except the city itself, as the Latin Empire could spare no army to defend it while they were busy fighting the Byzantine Empire of Nicaea in Asia. In 1224, just as Demetrius had become old enough to take power for himself, Theodore finally captured Thessalonica and the kingdom became part of the Despotate of Epirus.
The kingdom was claimed by titular kings of the house of Montferrat until 1284 and also by the Dukes of Burgundy; Baldwin II of Constantinople had promised the title to Hugh IV should he regain the Latin Empire.
Kings of Thessalonica
- 1204–1207 : Boniface of Montferrat (Boniface I)
- 1207–1224 : Demetrius of Montferrat (Demetrius)
Titular Kings of Thessalonica
- 1224–1230 : Demetrius of Montferrat (Demetrius)
- 1230–1239 : Frederick II, Holy Roman Emperor (Frederick)
- 1239–1253 : Boniface II of Montferrat (Boniface II)
- 1253–1284 : William VII of Montferrat (William)
- 1266–1271 : Hugh IV, Duke of Burgundy (Hugh I), rival claimant
- 1273–1305 : Robert II, Duke of Burgundy (Robert), rival claimant 1271–1284
- 1274–1277 : Philip of Sicily, rival claimant
- 1305–1313 : Hugh V, Duke of Burgundy (Hugh II)
- 1313–1316 : Louis of Burgundy (Louis I)
- 1316–1320 : Odo IV, Duke of Burgundy (Odo), sold his rights to
- 1320 : Louis I, Duke of Bourbon (Louis II)
- E.g. Salimbene de Adam, Chronicle, 1966 edition vol. 2 p. 790. Cf. (Runciman 1951-1954, vol. 3 p. 125), and for full discussion (Haberstumpf 1995, pp. 56–67).
- Van Tricht 2011, pp. 161–162.
- Van Tricht 2011, pp. 162–163.
- Haberstumpf, Walter (1995), Dinastie europee nel Mediterraneo orientale. I Monferrato e i Savoia nei secoli XII–XV, Torino
- Runciman, Steven (1951–1954), A history of the Crusades, Cambridge: Cambridge University Press
- Van Tricht, Filip (2011). The Latin Renovatio of Byzantium: The Empire of Constantinople (1204-1228). Leiden: Brill. ISBN 978-90-04-20323-5.