Succession
Appointed Caesar by Diocletian
Role range: 0305-0311
Historical biography archive · Updated 2026-11-03
Galerius Valerius Biography and Timeline
Follow Galerius Valerius through 8 dated historical records for Roman Empire.
Galerius Valerius, historical timeline
A chronological timeline drawn from matching World History Database records.
8Distinct records
1 of 1Page
293–311Years on this page
293
305
Succession
Succeeds as Emperor of the Eastern Empire of Rome
Role range: 0305-0311
307
Death of Galerius Valerius
War against Flavius Valerius Severus ends with the execution of Severus
Role range: 0305-0311
Execution of Severus
War against Flavius Valerius Severus ends with the execution of Severus
Role range: 0305-0311
Invasion of Italy
Forced to abandon an Invasion of Italy due to disloyalty in the army
Role range: 0305-0311
Succession
Recognized as the Senior Emperor
Role range: 0305-0311
308
Succession
Appoints Licinius as his successor
Role range: 0305-0311
311
Edict of Sardica
Grants toleration to Christians
Role range: 0305-0311
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.