Quick Facts
In full:
Flavius Julius Crispus
Born:
c. 305
Died:
326, Pola, Venetia
Britannica AI Icon
Adding us as a Preferred Source tells Google you trust our content, so our articles show up more often in your Google Search, Discover feed, and AI Overviews.
verifiedCite
While every effort has been made to follow citation style rules, there may be some discrepancies. Please refer to the appropriate style manual or other sources if you have any questions.
Select Citation Style
Feedback
Corrections? Updates? Omissions? Let us know if you have suggestions to improve this article (requires login).
Thank you for your feedback

Our editors will review what you’ve submitted and determine whether to revise the article.

Crispus

Roman ruler
Also known as: Flavius Julius Crispus

Crispus (born c. 305—died 326, Pola, Venetia) was the eldest son of Constantine the Great who was executed under mysterious circumstances on his father’s orders.

Crispus’s mother, Minerva (or Minervina), was divorced by Constantine in 307. Crispus received his education from the Christian writer Lactantius. On March 1, 317, Constantine gave Crispus the title of caesar and made him titular ruler of Gaul. He defeated the Franks in 320 and the Alamanni in 322 and 323. In the second war between Constantine and his co-emperor Licinius (324), Crispus commanded his father’s fleet and won an important naval victory in the Hellespont. But in 326, while accompanying Constantine to Rome to celebrate the 20th anniversary of his accession, he was put to death at Pola. Shortly afterward his stepmother, Fausta, was also executed.

This article was most recently revised and updated by Encyclopaedia Britannica.
Discover the fascinating events that shaped the world, straight from our editors.
By clicking “Sign Up”, you consent to the Britannica Privacy Policy and Terms of Use.