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The Mamertine Prison

The Mamertine Prison in Rome is significant because it is the traditional site of imprisonment for the Apostles Peter and Paul shortly before they were to be martyred. It is also Rome’s oldest prison which for many centuries housed the enemies of Rome, while awaiting their execution.  The Cross on the altar in the lower chapel is upside down, since according to tradition Saint Peter was crucified that way.

Significance
  • Holy site: The prison is a holy site and a must-see for Christians.
  • Historical importance: The prison is a place of great historical importance and a symbol of power.
  • Place of martyrdom: According to tradition, the Apostles Peter and Paul were imprisoned here before their martyrdom.
  • Place of worship: The prison has been used as a place of worship since the 7th century. 
History
  • The prison was originally called the Carcer Tullianum.
  • The term “Mamertine” was given to the prison in the Medieval Period. 
  • The prison is located beneath St. Joseph’s of the Carpenters, a Roman Catholic church.
  • The cross on the altar in the lower chapel is upside down, as per tradition, because Saint Peter was crucified that way 
  • The prison is believed to be the place where Paul referred to in his Second Letter to Timothy.