Tong Yabghu Qaghan

Tong Yabghu Qaghan (r. 618–628 or 630) was the khagan of the Western Turkic Khaganate from 618 to 628 AD. Tong Yabghu was the brother of Sheguy (r. 611–618), the previous khagan of the western Göktürks, and was a member of the Ashina clan; his reign is generally regarded as the zenith of the Western Göktürk Khaganate.