What happened in 421?
Constantius III and Yazdegerd I died — among 3 events recorded in 421.
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People 2
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Constantius III died
Western Roman Emperor (370-421)
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Yazdegerd I died
Died in Iran. The 14th Sassanid Emperor (399–420).
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Around this time
The nearest recorded events on either side of 421.
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Battle of the Nervasos Mountains
419 battle
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Suebi-Vandal War
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Valentinian III born
Born in Ravenna. Emperor of the Western Roman Empire (419-455).
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Jerome died
4th and 5th-century Catholic and Eastern Orthodox saint and Doctor of the Church
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Pelagius died
4th-century theologian, namesake of Pelagianism
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Sulpicius Severus died
Christian writer and historian and native of Aquitania (c. 363 – c. 425)
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Faxian died
Chinese Buddhist monk (bhikkhu), pilgrim to India, and travelogue author during the Jin and Liu Song dynasties
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Boniface I died
Pope
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Emperor Wu of Liu Song died
Emperor of Liu Song from 420 to 422
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Emperor Mingyuan of Northern Wei died
Chinese emperor
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Honorius died
4th and 5th-century Roman emperor
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Honorius
4th and 5th-century Roman emperor
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