This tradition, that Paul suffered martyrdom in Rome, is early and universal, and disputed by no counter-tradition and may be accepted as the one certain historical fact known about Paul outside of the New Testament accounts. Clement (Ad. Cor. chap. 5) is the first to mention the death of Paul, and seems to imply, though he does not directly state, that his death took place in Rome during the persecution of Nero. Caius (quoted below, §7), a writer of the first quarter of the third century, is another witness to his death in Rome, as is also Dionysius of Corinth (quoted below, §8) of the second century. Origen (quoted by Euseb. III. 1) states that he was martyred in Rome under Nero. Tertullian (at the end of the second century), in his De præscriptione Hær. chap. 36, is still more distinct, recording that Paul was beheaded in Rome. Eusebius and Jerome accept this tradition unhesitatingly, and we may do likewise. As a Roman citizen, we should expect him to meet death by the sword.