Alexios Kaballarios or Kaballares was a Byzantine

Byzantine

Byzantine usually refers to the Roman Empire during the Middle Ages.Byzantine may also refer to:* A citizen of the Byzantine Empire, or native Greek during the Middle Ages...

 aristocrat, cousin of Emperor Michael VIII Palaiologos

Michael VIII Palaiologos

Michael VIII Palaiologos or Palaeologus reigned as Byzantine Emperor 1259–1282. Michael VIII was the founder of the Palaiologan dynasty that would rule the Byzantine Empire until the Fall of Constantinople in 1453...

 (r. 1259–1282).

He participated in the Byzantine campaigns in the Morea

Morea

The Morea was the name of the Peloponnese peninsula in southern Greece during the Middle Ages and the early modern period. It also referred to a Byzantine province in the region, known as the Despotate of Morea.-Origins of the name:...

 in the early 1260s, and was taken prisoner by William II of Villehardouin

William II of Villehardouin

William II of Villehardouin, was the last Villehardouin prince of Achaea and ruled the principality at the height of its power and influence.William was the son of Geoffrey I Villehardouin...

 after the Battle of Makryplagi

Battle of Makryplagi

The Battle of Makryplagi or Makry Plagi was fought between the forces of the Byzantine Empire, and the Latin Principality of Achaea. The Byzantines had been weakened and demoralized by the defection of their numerous Turkish mercenaries to the Achaeans...

 (1263/1264). Apparently released at some later date, in ca. 1270 he held the offices of domestikos

Domestikos

Domestikos , in English sometimes [the] Domestic, was a civil, ecclesiastic and military office in the late Roman Empire and the Byzantine Empire.-Military usage:...

of the imperial table and governor of Thessalonica. Along with the despotes

Despotes

Despot , was a senior Byzantine court title that was bestowed on the sons or sons-in-law of reigning emperors, and initially denoted the heir-apparent...

John Palaiologos, he led a Byzantine army against John I Doukas

John I Doukas

John I Doukas was ruler of Thessaly from c. 1268 to his death in 1289....

 of Thessaly

Thessaly

Thessaly is a traditional geographical region and an administrative region of Greece, comprising most of the ancient region of the same name. Before the Greek Dark Ages, Thessaly was known as Aeolia, and appears thus in Homer's Odyssey....

, but was defeated and killed in the Battle of Neopatras

Battle of Neopatras

The Battle of Neopatras was fought in the early 1270s between a Byzantine army besieging the city of Neopatras and the forces of John I Doukas, ruler of Thessaly. The battle was a rout for the Byzantine army, which was caught by surprise and defeated by a much smaller but more disciplined...

(variously dated to 1273–1275).

Sources