Alliance Ethelred I and Mercians
Leads an army with the future King Alfred to support the Mercians against the Vikings
Role range: 0866-0871
Historical biography archive · Updated 2026-11-03
Ethelred I Biography and Timeline
Follow Ethelred I through 8 dated historical records for England.
Ethelred I, historical timeline
A chronological timeline drawn from matching World History Database records.
8Distinct records
1 of 1Page
853–971Years on this page
853
866
Succession
Succeeds as King of Wessex, brother of Ethelbert
Role range: 0866-0871
868
Invasion of Mercia
The Danes invade Mercia
Role range: 0866-0871
870
Battle of Englefield
Ethelred & Alfred of Wessex defeat the Danes
Role range: 0866-0871
Invasion of Wessex
The Danes invade Wessex
Role range: 0866-0871
871
Battle of Merton
Dies fighting the Danes at the Battle of Merton
Role range: 0866-0871
971
Death of Ethelred I
Death of Ethelred I
Role range: 0866-0871
Invasion of England
Kenneth II of Scotland raids England, reaching as far as Yorkshire
Role range: 0866-0871
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.