867

Updated on Oct 01, 2024

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Year 867 (DCCCLXVII) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar.

Byzantine Empire

September – Emperor Michael III is murdered, by order of his co-emperor Basil I. Basil becomes sole ruler (basileus) of the Byzantine Empire, and founds the Macedonian Dynasty (until 1056). Basil rebuilds the Byzantine army and navy, in an effort to restore the empire.

Europe

August – Treaty of Compiègne: King Charles the Bald cedes the Cotentin Peninsula to Salomon, duke ('king') of Brittany, after he had sent his son-in-law Pascweten to negotiate a peace. Charles orders the fortification of the cities of Tours, Le Mans and Compiègne.

Bořivoj I declares himself duke (knyaz) of Bohemia, and founds the Pŕemyslid Dynasty (approximate date).

Britain

The rival monarchs, Ælla and Osberht of Northumbria, join forces to expel the Great Heathen Army, but are defeated in battle by Ivar the Boneless and Halfdan Ragnarsson. Osberht is killed, while Ælla is executed by the traditional Viking way of the blood eagle.

Danish Vikings conquer Deira in Northern England; the Northumbrian royal court flees into Bernicia. Ivar the Boneless installs Ecgberht I, as a puppet king.

Religion

September – Photius I ("the Great"), patriarch of Constantinople, is removed from office and banished. Ignatius is reinstated as patriarch by Basil I.

November 13 – Pope Nicholas I dies after a 9-year reign. He is succeeded by Adrian II (also referred to as Hadrian II), as the 106th pope of Rome.