867

Byzantine Empire

 * September — becomes sole ruler of the.

Religion

 * September — is removed from office and banished;  is patriarch of Constantinople once again.
 * — (also referred to as Hadrian II) succeeds  as the 106th.

Births

 * of Japan (d. )
 * , King of Hubaekje (d. )

Deaths

 * September —, (assassinated) (b. )
 * King of Aragon
 * , Byzantine poet and composer (b. )
 * - (soldier of, Duke of Frioul)
 * - (soldier of, Duke of Frioul)