Who ruled

And beyond the steppe

  • China Tang Xuanzong 712–756
  • Iran Umayyad Hisham 724–743
  • Korea Silla Seongdeok 702–737 · Hyoseong 737–742
  • Byzantium Isaurian Leo III 717–741

Eastern steppe

Persia

  • Türgesh · Tabari

Caucasus and Crimea

  • Khazar Khaganate