Quick Facts
Original name:
Guido Di CittĂ  Di Castello, or Guido De Castellis
Died:
March 8, 1144
Flourished:
c.1101 - c.1150
Title / Office:
pope (1124-1124)
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.

External Websites
Britannica Websites
Articles from Britannica Encyclopedias for elementary and high school students.

Celestine II

pope
Also known as: Guido de Castellis

Celestine II (born, Città di Castello, Umbria, or Macerata, Ancona [Italy]—died March 8, 1144) was the pope from 1143 to 1144.

A scholar of noble birth, he studied under Peter AbĂ©lard, with whom he remained on friendly terms even after AbĂ©lard’s condemnation at the Council of Sens (1140). He was made cardinal deacon in 1127 by Pope Honorius II and cardinal priest (c. 1134) by Pope Innocent II, whom he was elected to succeed on Sept. 26, 1143. As pope (consecrated October 3), Celestine immediately removed Innocent’s interdict against King Louis VII of France. He died on the verge of a controversy with King Roger II of Sicily regarding Roger’s prerogatives as apostolic legate.

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.