Succession
Valentinian I persuades his troops to recognize his 7 yr son as co-Augustus
Role range: 0375-0383
Historical biography archive · Updated 2026-11-03
Gratian Biography and Timeline
Follow Gratian through 6 dated historical records for Roman Empire.
Gratian, historical timeline
A chronological timeline drawn from matching World History Database records.
6Distinct records
1 of 1Page
367–383Years on this page
367
375
Succession
Succeeds as Emperor of Rome
Role range: 0375-0383
378
Gratian Defeats Alamanni at Argentovaria
Gratians Roman troops defeated an Alamannic force near Argentovaria, delaying his army march to assist Valens in the east.
383
Assassination of Gratian
Death of Gratian, assassinated by Magnus Maximus
Role range: 0375-0383
Gratian Confronts British Usurpation
Emperor Gratian faced the challenge of Magnus Maximus after troops from Britain entered Gaul and rallied support for the usurper.
Gratian Killed at Lugdunum
Gratian was killed at Lugdunum after his forces deserted him amid the revolt led by Magnus Maximus.
Records, sources and methodology
These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.