CALEPODIUS. - No liturgical or topographical document bears witness to the cult rendered to C. as a martyr apart from the *Passio* of St Callistus, which asserts his status as a priest of the Roman Church and states that he was cast into the Tiber and buried by Pope Callistus himself in the cemetery of the same name on the Via Aurelia. The same *Passio*—certainly not genuine—is also the first source to attest to his cult among the Roman martyrs. In the same *Passio* and in the *Liber Pontificalis* the cemetery of C. is called that where Pope Callistus was buried; whereas in the *Depositio episcoporum* and in the *Catalogus Liberianus* the cemetery of Callistus is indicated as that on the third milestone of the Via Aurelia, where Popes Callistus and Julius were buried. But it is certain that his martyrdom was unknown in the early centuries.
The small cemetery of C. is located at the third milestone on the Via Aurelia, in the Villa Armellini (formerly Lamperini), opposite the farmhouse of St Pius V. In the Middle Ages it was often confused with that of St Pancras, and also called that of Callistus, from the tomb of this Pope, on which Julius I had, in due course, built a basilica where he himself was buried. In 1881 E. Stevenson found the remains of the apse of the basilica in the vicinity of which is the entrance to the cemetery, now much devastated and with its galleries filled with rubble.