Severus (or Secundius), Severian(us), Carpophorus, and Victorinus were martyred at Rome or Castra Albana, according to Christian tradition.
According to the Passion of Saint Sebastian, the four saints were soldiers (specifically cornicularii, or clerks, in charge of all the regiment’s records and paperwork) who refused to sacrifice to Aesculapius, and therefore were killed by order of Emperor Diocletian (284–305), two years after the death of the five sculptors, mentioned below. The bodies of the martyrs were buried in the cemetery of Santi Marcellino e Pietro on the fourth mile of the Via Labicana by Pope Miltiades and Saint Sebastian (whose skull is preserved in the church).
