The Martyrology gives these details: "At Rome on the Via Salaria the death of the holy martyr, the aged Saturninus, and of the deacon Sisinius. Under the emperor Maximianus they suffered long in prison. The prefect of Rome ordered them placed on the rack till their joints were torn loose, then beaten with knotted whips, and burnt with torches; at last removed from the rack, they were beheaded." According to the inscription on his tomb by Pope St. Damasus, Saturninus hailed from Carthage. The Acts of Marcellus say he was condemned as a frail old man to carry sand for the construction of the Baths of Diocletian; but when by his patience and prayer and encouragement he led many to the faith, he was beheaded.

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