Lyon

City · c. 443 CE · in Europe

Capital of Burgundian Kingdom (443–534).

Hippo Regius (c. 439 CE): Capital of Vandal Kingdom (439–439).
Jiankang (c. 426 CE): Capital of Liu Song Dynasty (426–479), Southern Qi (480–502), Chen Dynasty (561–589).
Braga (c. 414 CE): Capital of Kingdom of the Suebi (414–585), Kingdom of Galicia (911–1125).
Soissons (c. 476 CE): Capital of Kingdom of Soissons (476–486), Kingdom of Neustria (724–731).
Toulouse (c. 476 CE): Capital of Visigothic Kingdom (476–507), County of Toulouse (990–1249), Duchy of Aquitaine (990–1439).
Vallabhi (c. 476–1948 CE): Capital of Maitraka Dynasty (476–731).
Tournai (c. 481 CE): Capital of Kingdom of the Franks (481–508).
Kyiv (482 CE): Capital of Kievan Rus' (882–1240), Principality of Kiev (1056–1240), Ukrainian People's Republic (1919–1919).
Turkistan (401 CE): Capital of Kazakh Khanate (1599–1729).
Soba (400–1504 CE): Capital of Alodia (600–1504).

Around the same time and place

Fall of the Western Roman Empire (476 CE): The Germanic general Odoacer deposed Romulus Augustulus, the last Western Roman emperor, at Ravenna, a date conventionally marking the end of the Western Empire.
Augustine of Hippo (354 CE – 430 CE): Theologian and bishop of Hippo Regius in Roman North Africa whose works, including the Confessions and The City of God, shaped Western Christianity.
Sack of Rome (410) (410 CE): The Visigoths under Alaric sacked Rome, the first time in eight centuries that the city had fallen to a foreign enemy.
Trier (16 BCE – 1618 CE): Capital of Electorate of Trier (1333–1618).
Migration of the Visigoths (376–418 CE): Goths fleeing the Huns crossed the Danube into the Roman Empire in 376, defeated the Romans at Adrianople in 378, and under Alaric sacked Rome in 410, before settling in Aquitaine in 418.
Ravenna (c. 395 CE): Capital of Western Roman Empire (395–476), Ostrogothic Kingdom (500–553).
Attila (c. 406 CE – 453 CE): Ruler of the Huns who led devastating invasions of the Eastern and Western Roman Empires from his base on the Hungarian plain.
Venice (c. 421 CE): Traditionally founded in 421, Venice grew on lagoon islands into a maritime republic that dominated trade between Europe and the East.