Commenting on this passage, Raymond Brown writes that while it "does not explicitly say" that Paul was martyred in Rome, "such a martyrdom is the most reasonable interpretation". Eusebius of Caesarea, who wrote in the 4th century, states that Paul was beheaded in the reign of the Roman Emperor Nero. This event has been dated either to the year 64, when Rome was devastated by a fire, or a few years later, to 67. According to one tradition, the church of San Paolo alle Tre Fontane marks the place of Paul's execution. A Roman Catholic liturgical solemnity of Peter and Paul, celebrated on June 29, commemorates his martyrdom, and reflects a tradition (preserved by Eusebius) that Peter and Paul were martyred at the same time. The Roman liturgical calendar for the following day now remembers all Christians martyred in these early persecutions; formerly, June 30 was the feast day for St. Paul. Persons or religious orders with a special affinity for St. Paul can still celebrate their patron on June 30.