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Saints

Tt
Icon of St. Theodosius the Great

“The Great”

St. Theodosius the Great

Emperor of the Romans · Convener of the Second Ecumenical Council · Defender of Nicaea

The first emperor since Constantine to confess the Nicene Faith without reservation, who took the throne in 379 in the wake of the disaster at Adrianople, made the Nicene Faith the public confession of the empire (380), convened the Second Ecumenical Council at Constantinople (381), and submitted to public penance under St. Ambrose of Milan after the massacre at Thessaloniki (390).

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Born
January 11, 347 (Cauca, Hispania)
Reposed
January 17, 395 (Milan)
See
Roman Emperor
Feast
January 17

His life

Theodosius was born on January 11, 347, in Cauca in northern Spain, the son of the Roman general Theodosius the Elder. He was raised a Nicene Christian in a Spanish provincial home. He served as a young general under Valentinian I and was set aside under the Arian Emperor Valens.

When Valens was killed by the Goths at the battle of Adrianople in August of 378, the empire passed to the western Augustus Gratian, who recalled Theodosius from retirement and made him emperor of the East. Within a year of his elevation, Theodosius issued the Edict of Thessalonica (380) declaring the Faith of Nicaea, as held by the Bishop of Rome and the Patriarch of Alexandria, to be the public confession of the Roman world. The Arianizing settlements of the previous fifty years were quietly ended.

In 381 he summoned the Second Ecumenical Council at Constantinople, to ratify Nicaea, to confess the divinity of the Holy Spirit against the Pneumatomachi, and to set the order of the new Eastern patriarchates. He was present at the council in person, supported St. Gregory the Theologian when he was attacked, and, when Gregory withdrew to spare the council division, presided in person at the baptism, ordination, and consecration of Nectarius to the throne of Constantinople in a single day.

In April of 390 there was a riot at Thessaloniki in which an imperial general was killed by the crowd. In retaliation Theodosius ordered a public reprisal in the city's circus, and the slaughter was extensive (the traditional figure is seven thousand). St. Ambrose of Milan refused him Communion until he had done public penance. Theodosius came out of his palace in the dress of a penitent, stood at the door of the cathedral of Milan with the catechumens, and was not received again to the Holy Mysteries until he had wept his way through the canonical period of penance. It is the most famous instance in the patristic age of an emperor submitted to the discipline of the Church, and the principle has stood ever since: there is no rank in the Body of Christ above the canons of the Faith.

He died at Milan on January 17, 395, in the presence of his sons Arcadius and Honorius and of St. Ambrose, who preached his funeral oration. The Church keeps his memory as Theodosius the Great, equal to Constantine in his defense of the Nicene confession.

In his own words

“There is no rank in the Body of Christ above the canons of the Faith.
Traditional summary of his conduct under the discipline of St. Ambrose at Milan, 390

Writings

Read his works

1 of 1 work
  • 380 and 390

    The Edict and the Penance

    Two scenes from the reign of the Emperor of Nicaea

    Two scenes from his reign: the Edict of Thessalonica of February 380 by which the Nicene Faith became the public confession of the empire, and the famous public penance at Milan in 390 after the massacre at Thessaloniki, as preserved in the funeral oration of St. Ambrose. With the standard troparion of his January 17 feast.

    • Symphonia
    • Nicaea
    • Penance
    • Episcopate

    Open work →

Holy St. Theodosius the Great, pray to God for us.

Licensed Works

Books in print

These works are licensed and copyrighted by their publishers and cannot be hosted on Purify. As an Amazon Associate, Purify earns from qualifying purchases.

  • Cover of The Lives of the Saints for Orthodox Christians

    The Lives of the Saints for Orthodox Christians

    Edited by Dean Marais

    Orthodox Christian Publications · 2024

    A single-volume synaxarion of six hundred saints, including the emperor who made the Nicene faith the faith of the empire and bowed to St. Ambrose in penance.

    Buy on Amazon →

Events during this saint's life

  • May–July 381The Second Ecumenical Council at Constantinople→
Explore the interactive timeline →

At a glance

Born
January 11, 347 (Cauca, Hispania)
Reposed
January 17, 395 (Milan)
See
Roman Emperor
Feast
January 17