Tong Yabghu

統葉護可汗 Tong Yabghu Qaghan
Died	628
Title	khagan of the Western Turkic Khaganate (618–628)

Tong Yabghu Qaghan (died 628) (also known as T'ung Yabghu, Ton Yabghu, Tong Yabghu Khagan, Tun Yabghu, and Tong Yabğu, Traditional Chinese 統葉護可汗, Simplified Chinese: 统叶护可汗, pinyin Tǒngyèhù Kěhán, Wade-Giles: t'ung-yeh-hu k'o-han) was khagan of the Western Turkic Khaganate from 618 to 628 AD. His name is usually translated as "Tiger Yabgu" in Old Turkic. Another interpretation of his name is "sufficiency" or "completeness". He was the brother of Sheguy (r. 611-618), the previous khagan of the western Göktürks, and was a member of the Ashina clan. Tong Yabghu's reign is generally regarded as the zenith of the Western Göktürk Khaganate.

Tong Yabghu maintained close relations with the Tang Dynasty of China, and may have married into the Imperial family. The Chinese Buddhist pilgrim Xuanzang visited the western Göktürk capital Suyab in modern Kyrgyzstan and left a description of the khagan. Scholars believe the khagan described by Xuanzang was Tong Yabghu. Gao and La Vaissière argue that the khagan Xuanzang met was his son Si Yabghu, rather than Tong Yabghu. Xuanzang described the khagan as follows:

The khan wore a green satin robe; his hair, which was ten feet long, was free. A band of white silk wound round his forehead and hung down behind. The ministers of the presence, numbering two hundred in number, all wearing embroidered robes, stood on his right and left. The rest of his military retinue [was] clothed in fur, serge and fine wool, the spears and standards and bows in order, and the riders of camels and horses stretched far out of [sight].

...
Wikipedia