Issik Qaghan

Issik Qaghan (Chinese: 乙息記可汗 Yǐxījì kěhàn; personal name: Ashina Keluo 阿史那科罗) was the second ruler of the Turkic Khaganate. 
Name.
His name is reconstructible in Middle Chinese as *"kʰuâ-lâ", which transliterated either non-Turkic *"Kvara" or Old Turkic "Qara".
Rule.
During his brief rule, he defeated the Rouran khagan Yujiulü Dengzhu. He is recorded to have sent a tribute of 50,000 horses to Western Wei in May 553. He died the same year.