Fabian's episcopate
Before his election Fabian was a presbyter of the Roman church who fearlessly gave burial to the bodies of the martyrs. He was born at Rome, and according to the Liber Pontificalis came of a noble Roman family. His fourteen-year episcopate fell largely within a lull in persecution under the emperors Gordian and Philip, which allowed the Roman church to organize and build.
He divided the city into seven districts, each supervised by a deacon, and appointed subdeacons to gather the records of the martyrs' trials. He directed substantial work in the cemeteries and catacombs and, taking advantage of his standing under Philip, recovered the bodies of Pope Pontian and Hippolytus from the mines of Sardinia, arranging Christian burial for them in the catacombs.
Pontius the senator
Pontius was a Roman senator who used his position to protect and assist the Church and was a close friend of Fabian, who is said to have loved him as a son. Together they distributed their wealth for the relief of the poor. By his preaching he is credited with bringing his father Marcus, the emperor Philip and his son, and many other prominent Romans to the faith. By one account he was baptized by Pope Pontianus together with his friend Valerius, who afterward wrote his life.
When Decius's persecution began Pontius fled Rome and hid in the foothills of the Alps, settling at Cimella. He was captured under Valerian and subjected to severe tortures, during which, according to his vita, miracles took place and many were converted. He was at last beheaded and buried by his friend Valerius.
Veneration
Fabian was interred in the Catacomb of Callixtus in Rome, in the crypt of the bishops of Rome, where his Greek tomb inscription identifying him as bishop and martyr has endured. His relics were later reinterred by Pope Clement XI at the church of San Sebastiano fuori le mura.
The Orthodox Church commemorates Fabian and Pontius together on August 5. In the Roman Catholic and Anglican calendars Fabian is kept on January 20, shared with Saint Sebastian.