Who Was Alive

Were Justinian I and Gregory I alive at the same time?

Yes. Justinian I and Gregory I were alive at the same time, from AD 537–543 to AD 565.

Justinian I

Eastern Roman Emperor who ruled from 527 to 565

Born 11 May AD 482 · died 14 November AD 565, aged 83

Gregory I

6th-century Roman Pope, theologian and Church Father, Catholic and Orthodox saint, 64th Bishop of Rome and Doctor of the Church

Born AD 537–543 · died 12 March AD 604

Justinian I and Gregory I in bold, with some of their best-known contemporaries. Drag across to see the age each reached in any year. Faded ends mark uncertain dates.