John I

Pope John I was the bishop of Rome from 13 August 523 to his death on 18 May 526. He was a native of Siena, in Italy. Pope John I played a pivotal role in standardizing how the Western Church calculated the date of Easter, with the help of the monk Dionysius Exiguus, in 525.

Summary from Wikipedia (CC BY-SA 4.0) · Dates from Wikidata (CC0)

Who was born first?

• John I and John II were born the same year
• John I was born 7 years before Silverius
• John I was born 10 years after Symmachus
• John I was born 20 years before Agapetus I
• John I was born 20 years after Hormisdas

Timeline

1. HormisdasAD 450 – August 6, AD 523
2. Symmachuscirca AD 460 – July 19, AD 514
3. John I (this page)circa AD 470 – May 20, AD 526
4. John IIAD 470 – May 8, AD 535
5. SilveriusAD 477 – June 20, AD 537
6. Agapetus IAD 490s – April 22, AD 536

Related

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• Pope FrancisDecember 17, 1936 – April 21, 2025
• John Paul IIMay 18, 1920 – April 2, 2005
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• Marcus AureliusApril 26, AD 121 – March 17, AD 180
• Leo XIVSeptember 14, 1955 – present
• Constantine the Greatcirca February 27, AD 272 – May 22, AD 337
• Saint Peter1 BC – circa AD 65