Events Asia First siege of Constantinople by the Rus. Europe Ethelbert succeeds as king of Wessex. The later Harald I of Norway becomes king. The small village Weyhe was mentioned for the first time in historical documents. By topic Religion Michael I succeeds Sophronius I as Patriarch of Alexandria. Byzantine missionaries Cyril and Methodius arrive in Khazaria. Births Rollo of Normandy, founder and first ruler of the Viking principality of Normandy (also known as Hrolf Ganger in Icel… (More on 860)