Constantine XI Palaiologos

Constantine XI Palaiologos was the last Byzantine emperor, ruling from 1449 until he died during the Ottoman conquest of Constantinople in 1453.

Mehmed II: Mehmed II was the Ottoman sultan who conquered Constantinople in 1453. His siege brought Constantine XI’s reign to its violent end.
Fall of Constantinople: The Ottoman capture of Constantinople on 29 May 1453 ended the Byzantine Empire. Constantine XI died in the city’s final defense.
Palaiologos dynasty: The Palaiologos dynasty was the Byzantine ruling house from 1261 until the empire’s fall in 1453. Constantine inherited the imperial title as its final reigning member.
Byzantine Greeks: Byzantine Greeks were the Greek-speaking population of the medieval Roman Empire and its successor communities. The fall of their capital reshaped their political life and historical memory.
John VIII Palaiologos: John VIII Palaiologos was Byzantine emperor from 1425 to 1448 and Constantine XI’s elder brother. His death without a surviving son led Constantine to the throne.
Siege of Constantinople (1453): The 1453 siege was the Ottoman campaign that culminated in the capture of Constantinople. It was the military crisis Constantine faced throughout his final reign.
Morea: The Morea was the medieval name for the Peloponnese, governed partly as a Byzantine despotate. Constantine ruled there before becoming emperor.
Ottoman Empire: The Ottoman Empire was a multiethnic state that ruled much of southeastern Europe, western Asia, and North Africa. The conquest made Constantinople an Ottoman capital and strengthened the empire.
Thomas Palaiologos: Thomas Palaiologos was a Byzantine prince and Despot of the Morea, Constantine XI’s younger brother. He governed Byzantine territory while Constantine defended the capital.
Theodosian Walls: The Theodosian Walls were Constantinople’s massive land fortifications, built chiefly in the fifth century. Their defense was central to Constantine’s effort to keep the city.

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