Originally kept in Rome, Italy to commemorate the dedication of the Church of Saint Peter on the Esquiline Hill built by Eudoxia Licinia in 442, and rebuilt by Adrian I in the 8th century. When the chains which Saint Peter had worn in prison were later venerated there, the feast received its present name. The date when these chains were brought from Jerusalem is disputed; some claim they were brought in 116 by travellers sent in search of them by Saint Balbina and her father Saint Quirinus, while others think Saint Eudoxia brought them in 439. Pope Saint Leo the Great united them to the chains with which Saint Peter had been fettered in the Mamertine Prison, forming a chain about two yards long which is preserved in a bronze safe and guarded by a special confraternity.
- Book of Saints, by the Monks of Ramsgate
- New Catholic Dictionary
- Our Sunday Visitor’s Encyclopedia of Saints
- Roman Martyrology
- “Feast of Saint Peter in Chains“. Saints.SQPN.com. 9 October 2013. Web. 18 April 2014. <>