Saint Pope Damasus I (†384) was the bishop of Rome from 366 to his death. He presided over the Council of Rome of 382 that determined the canon or official list of sacred scripture. He spoke out against major heresies in the church and encouraged the production of the Vulgate Bible with his support for Jerome. He helped reconcile the relations between the Church of Rome and the Church of Antioch and encouraged the veneration of martyrs. Saint Pope Damasus I is recognized as a saint by the Catholic Church the Eastern Orthodox Church; his feast day is 11 December. He is a patron saint of archaeologists and evoked against fever.
Saint Pope Julius I (†352) was the bishop of Rome from 337 to his death. He is notable for asserting the authority of the pope over the Arian Eastern bishops, as well as a dubious claim that he set 25 December as the official birthdate of Jesus. Saint Pope Julius I was canonized Pre-Congregation and his feast day is celebrated on 12 April.