Constantine the Great Bronze — IOVI CONSERVATORI

Own a Coin from Constantine Before the Christian Empire

A real NGC-certified Roman bronze coin of Constantine the Great featuring Jupiter, the supreme god of traditional Roman religion, and the inscription IOVI CONSERVATORI—“To Jupiter the Protector.”

✓ NGC Certified
✓ Guaranteed Authentic
✓ 30-Day Returns

📷 Coins shown are representative examples. You will receive one authentic NGC-certified Roman bronze coin of Constantine the Great featuring an IOVI CONSERVATORI reverse. Each coin is unique and will vary in grade, strike, centering, preservation, toning, mint, and individual appearance.

⚡ Features Jupiter, traditional king of the Roman gods
✝ Issued during the reign of the emperor who would forever transform Christianity's place in the Roman world
🏛 An authentic NGC-certified piece of Roman history from the 4th Century AD

Own This Piece of History

Why This Coin Matters

Constantine the Great became one of the most consequential rulers in Roman history.

He defeated his rivals, reunited the Roman Empire, founded Constantinople, and became the first Roman emperor to openly embrace Christianity. His reign helped begin a religious and political transformation that would shape Europe and the Mediterranean world for centuries.

That makes the reverse of this particular coin especially fascinating.

It depicts Jupiter, the supreme god of the traditional Roman pantheon.

The inscription IOVI CONSERVATORI translates roughly as “To Jupiter the Protector” or “To Jupiter the Preserver.” Jupiter appears standing, typically holding Victory and a scepter, presenting the emperor's rule as protected by Rome's most powerful traditional deity.

For a coin of Constantine, that imagery captures an extraordinary moment of transition.

Constantine's association with Christianity did not mean that centuries of Roman religious tradition disappeared overnight. Early in his reign, his coinage continued to employ familiar pagan gods and symbols that Romans had understood for generations.

Then came one of the great turning points of Roman history.

Before the Battle of the Milvian Bridge in AD 312, Christian sources record Constantine experiencing a vision or divine sign associated with the Christian God. Constantine defeated Maxentius, entered Rome victorious, and increasingly associated himself with Christianity.

In AD 313, Constantine and his fellow emperor Licinius established religious toleration through the agreement traditionally known as the Edict of Milan, ending official persecution and restoring property to Christian communities.

Over the following decades, the religious language of Constantine's coinage changed as well. Explicitly pagan imagery became less prominent while Christian symbols began appearing within the imperial world.

That gives the IOVI CONSERVATORI bronze a special place in Constantine's story.

It represents a Roman Empire in transition—a coin of the future first Christian emperor still invoking the protection of Jupiter.

Constantine would eventually found Constantinople, preside over the Council of Nicaea, and establish a dynasty that permanently changed the relationship between the Roman state and Christianity.

More than seventeen centuries later, this coin preserves a small but remarkable piece of the world that existed at the beginning of that transformation.

Perfect For

• Constantine the Great collectors

• Christian and Biblical history enthusiasts

• Roman religion and mythology collectors

• Roman history lovers

• NGC-certified ancient coin collectors

• First-time ancient coin collectors

• Anyone fascinated by Rome's transition from the traditional gods to Christianity

What You'll Receive

• One authentic NGC-certified Roman bronze coin of Constantine the Great

• Civilization: Roman Empire

• Ruler: Constantine I “the Great” (AD 306–337)

• Century: 4th Century AD

• Denomination: Roman AE Bronze

• Reverse Type: IOVI CONSERVATORI

• Reverse: Jupiter standing

• Authenticated and encapsulated by NGC

• Representative example of the type (each coin is unique)

Continue the Story

Few coins capture the transformation of the Roman world quite like a Constantine bronze depicting Jupiter.

Within Constantine's lifetime, Christianity went from a persecuted religion to a faith enjoying imperial patronage, Constantinople became a new center of Roman power, and the religious identity of the empire began a transformation that would continue long after Constantine's death.

Explore our other Constantine, Roman, Byzantine, Biblical, Greek, and medieval coins to continue your journey through the rulers, civilizations, and events that changed history.

Buy with Confidence

• Authenticated by NGC

• Guaranteed authentic ancient coin

• 30-day return policy

• Secure shipping from the U.S.

New to Ancient Coins?

Start your journey here:

kinzercoins.com/collections/im-new-to-ancient-coins

Learn More

Continue the story in the Kinzer Coins Journal: Collecting Roman Coins by Deity: A Beginner-Friendly Guide.