820s

The 820s decade ran from January 1, 820, to December 31, 829.

Millennium:	1st millennium
Centuries:	8th century 9th century 10th century
Decades:	800s 810s 820s 830s 840s
Years:	820 821 822 823 824 825 826 827 828 829
Categories:	Births Deaths Establishments Disestablishments

Events

820

By place

Byzantine Empire

• December 25 – Emperor Leo V (the Armenian) is assassinated by conspirators in the Hagia Sophia, at Constantinople. Though unarmed, he fights back fiercely but dies of his wounds. He is succeeded by Michael II, the commander of the palace guard (excubitores). Leo's family (including his mother and his wife Theodosia) are exiled to monasteries in Princes' Islands.[1]

Ireland

• Fedelmid mac Crimthainn assumes the kingship as ruler of Munster (modern Ireland).

China

• Emperor Xian Zong dies from poisoning (due to medicines), after a 14-year reign. He is succeeded by his son Mu Zong, as ruler of the Tang Dynasty.

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Significant people

• Louis the Pious
• Egbert of Wessex
• Michael II
• Thomas the Slav
• Omurtag of Bulgaria
• Al-Ma'mun

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References

1. Theophanes Continuatus, pp. 40–41.