Who Was Alive

Were Gallienus and Diocletian alive at the same time?

Yes. Gallienus and Diocletian were alive at the same time, from 240s to AD 268.

Gallienus

Gallienus

Roman emperor

Born c. AD 218 · died AD 268

Diocletian

Diocletian

Roman emperor

Born 240s · died 3 December AD 316

  1. Nagarjuna, c. AD 150 – c. AD 250
  2. Tertullian, c. AD 160 – c. AD 240
  3. Plotinus, AD 205 – AD 270
  4. Aurelian, AD 214 – AD 275
  5. Gallienus, c. AD 218 – AD 268
  6. Diocletian, 240s – AD 316
  7. Constantine the Great, c. AD 272 – AD 337
  8. Saint George, AD 275 – c. AD 303
  9. Athanasius of Alexandria, AD 296 – AD 373

Gallienus and Diocletian in bold, with some of their best-known contemporaries; dashed lines mark world events. Drag across, or use the arrow keys, to see the age each reached in any year. Faded ends mark uncertain dates.

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Where Gallienus and Diocletian were born

Gallienus and Diocletian are labelled, with the contemporaries on the timeline. Each dot is a birthplace from Wikidata (7 of 9 placed); tap one to open that person.
Birthplaces as a list