Historical biography archive · Updated 2026-11-03

Seiwa Biography and Timeline

Follow Seiwa through 2 dated historical records for Japan.

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Seiwa, historical timeline

A chronological timeline drawn from matching World History Database records.

2Distinct records

1 of 1Page

850–877Years on this page

850 Succession

Emperor · House / House of Heian Period

Succeeds as Emperor of Japan, age 9

Role range: 0850-0877

877 Abdication

Emperor · House / House of Heian Period

Seiwa abdicates

Role range: 0850-0877

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.