Constantine XI Dragases Palaiologos or Dragaš Palaeologus was the last Roman (Byzantine) emperor, reigning from 1449 until his death in battle at the Fall of Constantinople in 1453. Constantine's death marked the definitive end of the Eastern Roman Empire, which traced its origin to Constantine the Great's foundation of Constantinople as the Roman Empire's new capital in 330.
Ruins of the castle at Patras, captured by Constantine in 1430
Contemporary sketches by Pisanello of the Byzantine delegation at the Council of Florence. The figure mounted on the horse is Constantine's brother, Emperor John VIII Palaiologos.
The Despot's Palace in Mystras, from which Constantine ruled as Despot of the Morea 1443–1449
Theodore II Palaiologos or Palaeologus was Despot in the Morea from 1407 to 1443 and in Selymbria from then until his death.
Theodore's seal as Despot of the Morea