834
Year 834 was a common year starting on Thursday of the Julian calendar.
Events
By place
Europe
- March 1 - Emperor Louis the Pious is restored as sole ruler of the Frankish Empire. After his re-accession to the throne, his eldest son Lothair I flees to Burgundy.
- Danish Vikings raid the trading settlement of Dorestad, located in the southeast of the province of Utrecht.
- Summer - The Viking ship of Oseberg near Tønsberg is buried in a mound, during the Viking Age.
- The first mention is made of the Jona River in Switzerland.
Britain
- King Óengus II dies after a 14-year reign. He is succeeded by his nephew Drest IX, as ruler of the Picts.
By topic
Religion
- July 20 - Ansegisus, Frankish abbot and advisor of former emperor Charlemagne, dies at Fontenelle Abbey in Normandy.
Births
- Aud the Deep-Minded, Icelandic queen
- Euthymius I, Ecumenical Patriarch of Constantinople
- Lady Shuiqiu, wife of Qian Kuan
- Mo Xuanqing, Chinese scholar
- Pi Rixiu, Chinese poet
- Robert, Frankish nobleman
- Tan Quanbo, Chinese warlord
Deaths
- July 20 or 833 - Ansegisus, Frankish abbot
- Adelchis I, duke of Spoleto
- Cellach mac Brain, king of Leinster
- Fridugisus, Anglo-Saxon abbot
- Gaucelm, Frankish nobleman
- Nasr ibn 'Abdallah, Muslim governor
- Odo I, Frankish nobleman
- Óengus II, king of the Picts
- Robert III, Frankish nobleman
- Wang Chengyuan, Chinese general
- Wang Tingcou, general of the Tang dynasty
- William, Frankish nobleman