Pope Julius I

Pope Saint Julius I
Bishop of Rome
Pope Julius I depicted in a c. 12th century mosaic from the apse of the Roman church Santa Maria in Trastevere
Church	Catholic Church
Papacy began	6 February 337
Papacy ended	12 April 352
Predecessor	Mark
Successor	Liberius
Personal details
Born	280 AD Rome, Roman Empire
Died	12 April 352 Rome, Roman Empire
Sainthood
Feast day	12 April
Venerated in	Catholic Church, Eastern Orthodox Church, Oriental Orthodox Church
Other popes named Julius

Pope Julius I was the bishop of Rome from 6 February 337 to his death on 12 April 352. He is notable for asserting the authority of the pope over the Arian Eastern bishops, as well as setting December 25 as the official birthdate of Jesus.