What happened in 821?
Siege of Constantinople, Benedict of Aniane and Theodulf of Orléans — among 15 events recorded in 821.
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Wars & Conflicts 1
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Siege of Constantinople
821–823 siege
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People 7
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Theodotus I of Constantinople died
Patriarch of Constantinople from 815–821
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Saint Kenelm died
Mercian monarch and saint
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Benedict of Aniane died
Benedictine monk and reformer
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Theodulf of Orléans died
Bishop and saint; hymnwriter
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Leo V the Armenian died
Died in Constantinople. Byzantine emperor (lived 775–820).
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Ordoño I of Asturias born
Born in Oviedo. King of Asturias.
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Coenwulf died
Died in Basingwerk Abbey. King of Mercia from 796 to 821.
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Religion & Belief Systems 1
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Takidani Fudō Myōō-ji Temple
Buddhist temple in ondabayashi, Ōsaka
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Architecture & Engineering 1
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Taiyū-ji Temple
Building in Kita-ku, Osaka Prefecture, Japan
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Empires & Countries 2
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Tahirid dynasty founded
Tahirid dynasty was founded, with its capital at Nishapur.
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Principality of Khachen founded
Principality of Khachen was founded, with its capital at Zar.
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