Who ruled
- Byzantium Theodosius II 408–450
- Hunnic Empire Attila 434–453
- unattached Theodoric I 419–451
- Western Roman Empire Valentinian III 425–455
And beyond the steppe
- China Northern Wei Emperor Taiwu 423–452
- Iran Sasanian Yazdegerd II 438–457
- Korea Goguryeo Jangsu 413–491
- Byzantium Theodosian Theodosius II 408–450
Tarim and Sogdiana
Byzantium
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On the river Utus the Huns defeat the eastern field army; its commander Arnegisclus falls
