#DespotateofEpirus

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Thessaly and the Duchy of Neopatras

Thessaly was an independent state in medieval Greece from 1267 or 1268 to 1394 CE, first as the Greek-ruled Thessaly and later as the Catalan and Latin-ruled Duchy of Neopatras. Under its sebastokrators, Thessaly was a thorn in the side of the Byzantine Empire and an ally of the Latin states in Greece and southern Italy. Following the death of the last Thessalian sebastokrator in 1318 CE, the Duchy of Neopatras was established by the Catalans and combined with the Duchy of Athens, with the two states mostly sharing the same rulers and fortunes until Thessaly was finally conquered by the Ottoman Turks in 1423 CE.

Beginnings in Epirus

Following the Fourth Crusade's sacking of Constantinople in 1204 CE, the Byzantine Empire splintered into a series of successor states. Thessaly was originally held by the regional Greek leader Leo Sgouros, but when the Latin crusaders arrived, the territory was quickly taken over by Latin lords under the nominal leadership of Boniface of Montferrat, the new King of Thessalonica (r. 1205-1207 CE). Latin rule in Thessaly was short-lived, however, and in 1212 CE, Michael I Komnenos Doukas of Epirus (r. 1205-1215 CE) occupied central Thessaly, including the key city of Larissa, and the rest of Thessaly was conquered by his half-brother and successor, Theodore Komnenos Doukas (r. 1215-1230 CE). Epirus was one of the three long-lasting Greek (or rather Roman) successor states to the Byzantine Empire, and it was initially quite successful, conquering Thessalonica, restyling itself the Empire of Thessalonica, and advancing almost to the gates of Constantinople itself before Theodore suffered a horrific defeat at the Battle of Klokotnitsa in 1230 CE.

In the aftermath of Klokotnitsa, Manuel Komnenos Doukas (r. 1230-1241 CE) took up power in Thessalonica while his relative Michael II Komnenos Doukas (r. 1230-1267/1268 CE) became the ruler of Epirus. Thessaly was ruled by the Empire of Thessalonica during this decade of contraction, but when Manuel was ousted from Thessalonica in 1237 CE by the returned Theodore, he went to Thessaly, where he ruled the region as an independent state from 1239 to 1241 CE. Upon his death, Thessaly fell to Michael II of Epirus, being reincorporated into the Despotate of Epirus. The region was briefly occupied by the Empire of Nicaea in 1259 but was reoccupied by Epirote forces the following year.

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