Who ruled
- Byzantium Theodosius II 408–450
- Rouran Khaganate Datan Khan 414–429
- 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 Bahram V 420–438
- Korea Goguryeo Jangsu 413–491
- Byzantium Theodosian Theodosius II 408–450
Eastern steppe
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Taiwu marches into the steppe on five roads; Datan's people flee north
