Litany of Saints
Picture: Byzantine mosaicist, ca. 1000 · Public domain · Wikimedia Commons

Constantine the Great

Roman emperor from 306 to 337 and first to convert to Christianity (272–337)

SaintResearchedAncient RomeDate unknown

Feast: 6 April (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)

Born
300
Died
337
verified
Beatified
not on record
Canonised
not on record

Who they were

Constantine, son of the Emperor Constantius and St Helena, was proclaimed emperor by his troops in 306. After his victory at the Milvian Bridge he granted toleration to Christian worship throughout the empire by the Edict of Milan in 313.

He was baptised shortly before his death in May 337.

The miracles

The Catholic Encyclopedia does not describe how he came to be honoured as a saint.

Why that counted as sanctity

The emperor who ended the persecution of the Church.

Connected on this site

  • Constantina Saint Child
    “354), later known as Saint Constance, was the eldest daughter of Roman emperor Constantine the Great and his second wife Fausta, daughter of Emperor Maximian.” — Wikipedia
  • Helena Augusta Saint Parent, Mother
    “AD 246/248 – 330), also known as Helena of Constantinople and in Christianity as Saint Helena, was a Greek Augusta of the Roman Empire and mother of Emperor Constantine the Great as well as a Canonized saint in both Catholic and Orthodox Churches for her pivotal role in the spread of Christianity.” — Wikipedia
  • Eusignius Saint
    “According to his hagiography he was born at Antioch and served in the imperial armies for about sixty years, beginning his career under the emperor Maximian and continuing through the reigns of Constantius Chlorus, Constantine the Great, and Constantine's sons.” — Wikipedia
  • Hosius of Corduba Saint
    “After Lactantius, he was the closest Christian advisor to Emperor Constantine the Great and guided the content of public utterances, such as Constantine's Oration to the Saints, addressed to the assembled bishops.” — Wikipedia
  • Konstantinos XI Palaiologos Saint
    “Constantine's death marked the definitive end of the Eastern Roman Empire, which traced its origin to Constantine the Great's foundation of Constantinople as the Roman Empire's new capital in 330.” — Wikipedia
  • Metrophanes of Byzantium Saint
    “There is a tradition that the Roman emperor Constantine the Great bestowed upon him the honorary title of Patriarch; however, Byzantium did not become the capital of the Empire until 330 (when it was renamed Constantinople), and the see was not elevated to a patriarchate until 451.” — Wikipedia
  • Miltiades Saint
    “It was during his pontificate that Emperor Constantine the Great issued the Edict of Milan (313), giving Christianity legal status within the Roman Empire.” — Wikipedia
  • Mirian III of Iberia Saint
    “258/277 — 361) was a king (mepe) of Iberia or Kartli (Georgia), contemporaneous to the Roman emperor Constantine the Great (r.” — Wikipedia
  • Nicetas the Goth Saint
    “His life spanned the years of Emperor Constantine the Great's sole rule (324–337 AD).” — Wikipedia
  • Patricia of Naples Saint
    “Some sources say that she was a descendant of Constantine the Great.” — Wikipedia
  • Paul of Neocaesarea Saint
    “According to Theodoret, Paul "had been deprived of the use of both hands by the application of a red hot iron by which the nerves which give motion to the muscles had been contracted and destroyed." After Licinius was executed in the year 324, when Constantine the Great became the sole ruler of the Roman Empire,…” — Wikipedia
  • Reticius Saint
    “He traveled on behalf of Emperor Constantine the Great in 313 to the Synod of Rome and in 314 to the Synod of Arles, in order to bring about a resolution to the dispute with the Donatists.” — Wikipedia
1 more
  • St. Aristaces I Saint
    “Aristaces is also said to have participated in an embassy together with Gregory and King Tiridates to the newly converted Roman emperor Constantine the Great, although this is considered "purely legendary" by scholar Robert W.” — Wikipedia
Sources

Checked against the sources listed on 21 September 2026. Corrections welcome.

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