The Passion of Peter and Paul exists in two versions. Both versions claim to be the work of Marcellus, a Roman presbyter (church elder) who reportedly knew Peter. However, this work actually dates from the fifth century AD.
The first version is similar to the Acts of Peter and Paul. It focuses on Paul's journey to Rome. The second version tells more about the time when Peter and Paul lived in Rome, especially their stay in the home of a relative of Pontius Pilate. Both versions emphasize the close relationship between Peter and Paul and their successful opposition to Simon Magus, a man who falsely claimed to be the Christ. The writings also record their death sentences, though the accounts of their martyrdoms are brief.