Januarius ( ; ; Neapolitan and ), also known as , was Bishop of Benevento and is a martyr and saint of the Catholic Church and the Eastern Orthodox Church. While no contemporary sources on his life are preserved, later sources and legends claim that he died during the Great Persecution, which ended with Diocletian's retirement in 305. Januarius is the patron saint of Naples, where the faithful gather three times a year in Naples Cathedral to witness the liquefaction of what is claimed to be a sample of his blood kept in a sealed glass ampoule. Life Little is known of the life of Januarius, and what follows is mostly derived from later Christian sources, such as the Acta Bononensia (BHL 4132, not earlier than 6th century) and the Acta Vaticana (BHL 4115, 9th century), and from later folk traditions. Legend According to various hagiographies, Januarius was born in Benevento to a rich patrician family that traced its descent to the Caudini tribe of the Samnites. At a young age of 15, he became local priest of his parish in Benevento, which at the time was relatively pagan. When Januarius was 20, he became Bishop of Naples and befriended Juliana of Nicomedia and Saint Sossius whom he met during his priestly studies. During the -year-long persecution of Christians by Emperor Diocletian, he hid his fellow Christians and prevented them from being caught. Unfortunately, while visiting Sossius in jail, he too was arrested. He and his colleagues were condemned to be thrown to wild bears in the Flavian Amphitheater at Pozzuoli, but the sentence was changed due to fear of public disturbances, and they were instead beheaded at the Solfatara crater near Pozzuoli. Other legends state either that the wild beasts refused to eat them, or that he was thrown into a furnace but came out unscathed. History The earliest extant mention of him is contained in a 432 letter by Uranius, bishop of Nola, on the death of his mentor Saint Paulinus of Nola, where it is stated that the ghosts of Januarius and Saint Martin appeared to Paulinus three days before the latter's death in 431. About Januarius, the account says only that he was "bishop as well as martyr, an illustrious member of the Neapolitan church". The Acta Bononensia says that "At Pozzuoli in Campania [is honored the memory] of the holy martyrs Januarius, Bishop of Beneventum,