Historical biography archive · Updated 2026-11-03

Theodosius II Biography and Timeline

Follow Theodosius II through 9 dated historical records for Roman Empire.

Theodosius II, historical timeline

A chronological timeline drawn from matching World History Database records.

9Distinct records
1 of 1Page
401–431Years on this page

401

Birth of Theodosius II

Emperor · Istanbul · House / House of Theodosius

Birth of Theodosius II, son of Emperor Arcadius & Aelia Eudoxia

Role range: 0408-0450

408

Succession

Emperor · House / House of Theodosius

Succeeds as Emperor of the Eastern Roman Empire. Longest reigning ruler in Roman history

Role range: 0408-0450

414

Regency

Emperor · House / House of Eastern Emperors

Appointed Regent of the Eastern Empire for her weaker brother Theodisius

Role range: 0408-0450

421

Marriage

Emperor · House / House of Theodosius

Theodosius II marries Aelia Eudocia

Role range: 0408-0450

Peace

Emperor · Warfare / Rome War

Makes a lasting peace with the Persian Empire

Role range: 0408-0450

431

Council of Ephesus

Emperor · Ephesus · Religion / Roman Catholic Church

The Council of Ephesus is a council of Christian bishops convened in Ephesus by Theodosius II, the third ecumenical council, an effort to attain consensus in the church through an assembly representing all of Christendom.

Role range: 0408-0450

Council of Ephesus

Emperor · Ephesus · Religion / Roman Catholic Church

confirms the original Nicene Creed, and condemns the teachings of Nestorius, Patriarch of Constantinople that the Virgin Mary may be called the Christotokos, "Birth Giver of Christ" but not the Theotokos, "Birth Giver of God".

Role range: 0408-0450

Nicene Creed

Emperor · Ephesus · Religion / Roman Catholic Church

The Council of Ephesus is a council of Christian bishops convened in Ephesus by Theodosius II, the third ecumenical council, an effort to attain consensus in the church through an assembly representing all of Christendom.

Role range: 0408-0450

Nicene Creed

Emperor · Ephesus · Religion / Roman Catholic Church

confirms the original Nicene Creed, and condemns the teachings of Nestorius, Patriarch of Constantinople that the Virgin Mary may be called the Christotokos, "Birth Giver of Christ" but not the Theotokos, "Birth Giver of God".

Role range: 0408-0450

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.