856

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title: "856" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["856"] description: "Calendar year" topic_path: "general/856" source: "https://en.wikipedia.org/wiki/856" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Calendar year ::

::callout[type=note] 856 ::

::figure[src="https://upload.wikimedia.org/wikipedia/commons/3/3a/Raban-Maur_Alcuin_Otgar.jpg" caption="Odgar of Mainz]] (right)"] ::

NOTOC Year 856 (DCCCLVI) was a leap year starting on Wednesday of the Julian calendar.

Events

By place

Byzantine Empire

• March 15 – Emperor Michael III overthrows the regency of his mother Theodora. He appoints his uncle Bardas as the de facto regent and co-ruler of the Byzantine Empire.

Europe

• King Charles the Bald cedes the county of Maine to Erispoe, ruler (duke) of Brittany—this in return for an alliance against the Vikings.
• King Ordoño I of Asturias is said to have begun the repopulation of the town of León in the northwest of Spain (approximate date).

Britain

• October 1 – King Æthelwulf of Wessex marries the 12- or 13-year-old Judith, daughter of Charles the Bald, at Verberie (Northern France). She is crowned queen and anointed by Hincmar, archbishop of Reims. The marriage is a diplomatic alliance between Wessex and the West Frankish Kingdom.
• Winter – Æthelwulf returns to Wessex to face a revolt by his eldest son Æthelbald, who usurps the throne. Æthelwulf agrees to give up the western part of his kingdom, in order to avoid a civil war. He keeps control over Sussex, Surrey, Essex and Kent, over which Prince Æthelberht has presided.

By topic

Geology

• November (approximate date) – An earthquake in Corinth, Greece kills an estimated 45,000 people.
• December 3 – Another earthquake strikes the Abbasid Caliphate (modern-day Tunisia), also killing an estimated 45,000 people.
• December 22 – Another earthquake strikes Damghan (modern-day Iran), killing an estimated 200,000 people.

Births

• October 24 – Li Keyong, Shatuo governor (jiedushi) (d. 908)
• Li Maozhen, Chinese warlord and king (d. 924)

Deaths

• January 7 – Aldric, bishop of Le Mans
• February 4 – Rabanus Maurus, archbishop of Mainz
• August 6 – Fujiwara no Nagara, Japanese statesman (b. 802)
• August 16 – Theutbald I, bishop of Langres
• Florinus of Remüs, Frankish priest and martyr
• Godfrid Haraldsson, Viking chieftain (approximate date)
• Guerin, Frankish nobleman (or 845)
• Ilyas ibn Asad, Muslim emir (approximate date)
• Muhammad I Abu 'l-Abbas, Muslim emir

References

Sources

References

1. {{harvnb. Treadgold. 1997
2. Paul Hill (2009). ''The Viking Wars of Alfred the Great'', p. 18. {{ISBN. 978-1-59416-087-5.

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