Map of East Asia in 439: the Rouran in the steppe, the Northern Wei with the Northern Liang they took in 439, the march of the Wei from Pingcheng to Guzang, the flight of the Ashina to the Rouran, and the Liu Song in the south
439: The Northern Wei march on Guzang, and the Northern Liang capitulate. The Ashina flee with five hundred families to the Rouran. The Rouran hold the steppe north of the Gobi; south of the Wei lie the Liu Song. Modern map; the road of the Wei is drawn, and the borders in the steppe are approximate.
Plate X in the Atlas → © Emre-E Yavuz 2026

Who ruled

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

  • The Flight of the Ashina (439) · Ashina · Pingliang · Rouran Khaganate · Gaochang · Altai

    Also dated 450 (Bei Shi 99, as read in the Bumin article): Settlement date in the middle decades of the fifth century.

    The Sui Shu gives no year for the flight; it follows the fall of the Liang, which the Wei Shu dates to 439. One reconstruction takes the Ashina by Gaochang to the Altai