Yazdegerd Begins Royal Reign
Yazdegerd I succeeded Bahram IV and pursued changing policies toward Christians and court aristocrats during his rule.
Historical biography archive · Updated 2026-11-03
Yazdegerd I Biography and Timeline
Follow Yazdegerd I through 2 dated historical records for Persia.
Yazdegerd I, historical timeline
A chronological timeline drawn from matching World History Database records.
2Distinct records
1 of 1Page
399–410Years on this page
399
410
Seleucia Ctesiphon Church Council
A church council held at Seleucia Ctesiphon under Yazdegerd I organised Christian ecclesiastical affairs in the Sasanian Empire.
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.