Quick Facts
Gaius also spelled:
Caius
Died:
April 22?, 296, Rome [Italy]
Title / Office:
pope (283-296)
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.

St. Gaius (born, Dalmatia? [now in Croatia]—died April 22?, 296, Rome [Italy]; feast day April 22) was the pope from 283 (possibly December 17) to 296. Nothing about him is known with certainty. Supposedly a relative of the Roman emperor Diocletian, who was known for his heavy persecution of Christians, Gaius conducted his pontificate during a period of Diocletian’s reign when Christians were tacitly tolerated. Nevertheless, Gaius is said to have carried on his religious work for his last eight years concealed in the catacombs. His epitaph was found in the Cemetery of Calixtus.

The Editors of Encyclopaedia BritannicaThis 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.