Birth of John VIII Palaiologos
Birth of John VIII Palaiologos, eldest son of Manuel II Palaiologos and Helena Dragas, the daughter of the Serbian prince Constantine Dragas
Role range: 1425-1448
Historical biography archive · Updated 2026-11-03
John VIII Biography and Timeline
Follow John VIII through 7 dated historical records for Roman Empire.
John VIII, historical timeline
A chronological timeline drawn from matching World History Database records.
7Distinct records
1 of 1Page
1392–1448Years on this page
1392
1422
Siege of Constantinople
Supervises the defense of Constantinople during a siege by Sultan Murad II
Role range: 1425-1448
1423
Rule of Thessalonika
Has to accept the loss of Thessalonika which his brother Andronikos has given to the Venetia
Role range: 1425-1448
1425
Succession
Succeeds as Emperor of the Eastern Roman Empire
Role range: 1425-1448
1439
Council of Florence
To secure protection against the Ottomans, visit Pope Eugene IV and consents to the union of the Greek and Roman churches, which is ratified at the Council of Florence
Role range: 1425-1448
Unification
To secure protection against the Ottomans, visit Pope Eugene IV and consents to the union of the Greek and Roman churches, which is ratified at the Council of Florence
Role range: 1425-1448
1448
Death of John VIII
Death of John VIII Palaiologos
Role range: 1425-1448
Records, sources and methodology
These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.