Saint Library
April 12historicalUniversal

Julius I

Pope

Life280352Pope Julius ISaint Juliusdefenders of faiththe unjustly accusedNicene orthodoxy

"Can you be ignorant that this is the custom, that we should be written to first, so that from here what is just may be defined?"

Julius served as Bishop of Rome from 337 to 352, defending Nicene orthodoxy against the Arian faction at its imperial height. He sheltered Athanasius in Rome, convened a synod in 342 that overturned his deposition, and secured canons at the Council of Sardica establishing Rome as a court of appeal for deposed bishops.

Julius I
Their Story

Life & Times

Early Life

Born in Rome. Elected Pope in 337 after a vacancy.

Turning Point

Sheltered St. Athanasius during his exile, vigorously defending the Nicene Creed against Arian emperors.

Legacy

Convened the Council of Sardica, establishing the Pope's right to judge appeals from deposed bishops.

Key Moments
1 / 5
280
280

Born in Rome

Born in Rome; his father's name was Rusticus.

337
337

Papacy Begins

Elected Pope after a four-month vacancy following the death of Pope Mark; immediately faces the escalating Arian crisis.

342
342

Roman Synod

Presides over a Roman synod that clears Athanasius of the charges laid against him at the Arian synod of Antioch, receiving him into full communion.

343
343

Council of Sardica

Convened through Julius's influence; the Western bishops affirm Rome's appellate jurisdiction over deposed bishops, advancing papal primacy in church discipline.

352
352

Death

Dies on 12 April in Rome; buried in the Catacombs of Calepodius.

280

Historical Context

Pope Julius I served as Bishop of Rome from 6 February 337 until his death on 12 April 352. His pontificate was dominated by the Arian controversy: Arian bishops, led by the circle around Eusebius of Nicomedia, renewed their deposition of Athanasius of Alexandria at a synod in Antioch in 341 and sought to present their case to Julius. Julius, expressing sympathy for Athanasius, invited both parties to submit the dispute to a Roman synod under his presidency — an invitation the Eastern bishops refused. On his second banishment from Alexandria, Athanasius came to Rome, and in 342 Julius presided over a synod that declared his deposition unjust and received him into communion. Julius then addressed a pointed letter to the Eastern bishops: 'Can you be ignorant that this is the custom, that we should be written to first, so that from here what is just may be defined?' The letter is one of the earliest explicit assertions of the bishop of Rome's primatial role in resolving episcopal disputes. Through Julius's influence, the Council of Sardica in Illyria was convened, attended by roughly three hundred Western bishops. The Eastern bishops withdrew to Philippopolis, where they deposed Julius, Athanasius, and others — a gesture that carried little weight in the West. The Western council confirmed the Roman synod's decisions and issued canons that, in their third, fourth, and fifth decrees, recognized Rome's right to receive appeals from deposed bishops, a significant step in the development of papal jurisdiction. Julius is also attributed with fixing 25 December as the official date for celebrating Christ's nativity. Scholarly debate continues over the origins of this date, but a December 25 celebration is attested in Rome during his pontificate. He also built several basilicas and churches in Rome. He was declared a saint, and his feast day is observed on 12 April.
Canonization: saint Wikipedia

Life Locations

Words & Wisdom

Prayers
"Sharing the faith of St. Julius in the divinity of Christ."

O God, who through Pope Julius I defended the true faith against heresy; keep us steadfast in the confession of Your Son, Jesus Christ, who is God from God, Light from Light, true God from true God.

papal tiaraPapal authority
shieldDefense of orthodoxy

Related Saints

Connections in the communion of saints