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Constantine XI Palaiologos

The last Byzantine emperor. He died defending Constantinople during the siege of 1453, and his death became associated with the end of the Eastern Roman Empire.

1405 – 1453EmperorPalaiologos · ES
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This complete profile is available in English. Bibliographic titles retain their original language. Links marked ES open the Spanish edition.

Historical profile

Key details

Birth: 1405 Pending review

Death: 1453 Pending review

Role: Emperor

Other recorded names: Constantino XI Dragases Paleólogo

Dynasty: Palaiologos · ES

Territories: Byzantium (ES) · Morea (ES)

Recorded governments and reigns
Emperor · Byzantium · Empire Pending review1449–1453Effective rule
Despot · Morea · Despotate Approximate1428–1448Branch ruleDowries and fraternal partition dated by territorial core; each brother is not assigned the entire region.
Family network

Recorded relationships

Parents
Crowns and unions

Their titles over time

Follow the changing territories and offices of Constantine XI Palaiologos. Each title retains its own status.

Governments in 1428

  • MoreaDespot
    View titles and jurisdictions
    • Morea · ESDespot · Branch rule · Western and northern areas of the Morea, with Mystras from 14431428–1448 · Dowries and fraternal partition dated by territorial core; each brother is not assigned the entire region.

Annual dates: overlap within one year does not prove that two offices were held on the same day. Regencies and co-rulerships retain their labels.

Documentation

Sources for this profile

Biographical and contextual references in their original language. Sources and methodology.

Evidence for this profile

6 recorded claims · 5 without a claim-specific source. Context references do not by themselves verify every fact.

Dates (0/2 with a precise source)
  • BirthPending review

    1405

    A precise source has not yet been added.
    No individual review recorded ·
  • DeathPending review

    1453

    A precise source has not yet been added.
    No individual review recorded ·
Family and relationships (0/2 with a precise source)
  • FatherPending review

    Manuel II Palaiologos

    A precise source has not yet been added.
    No individual review recorded ·
  • MotherPending review

    Helena Dragaš

    A precise source has not yet been added.
    No individual review recorded ·
Governments (1/2 with a precise source)
Biographical and contextual references (3)
Editorial history
  • 2026-10-12 · Claim registry added; existing historical data kept. Specific sourcing remains to be reviewed.
  • 2026-10-08 · Claim registry added; existing historical data kept. Specific sourcing remains to be reviewed.
  • 2026-10-04 · Claim registry added; existing historical data kept. Specific sourcing remains to be reviewed.
  • 2026-10-04 · Claim registry added; existing historical data kept. Specific sourcing remains to be reviewed.
  • 2026-10-03 · Claim registry added; existing historical data kept. Specific sourcing remains to be reviewed.
  • 2026-09-30 · The duchy is limited to Dijon and Autun; each other fief now enters the map only under its dated ruler. John III of Namur and the Nevers/Rethel branch were added. The previous shape combined later counties and unrelated lands as if all belonged to the duchy from 1363.
  • 2026-09-28 · Claim registry added; existing historical data kept. Specific sourcing remains to be reviewed.

Related stories

Follow this person through history

Story · Spanish original

Constantinople: two conquests, two worlds

1204 and 1453: from the Fourth Crusade to Mehmed II’s empire

Start reading
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