Pugu Huai'en

Pugu Huai'en, formally the Prince of Da'ning (大寧王), was a general of the Chinese Tang dynasty of Tiele ancestry. He was instrumental in the final suppression of the Anshi Rebellion, but rebelled against Emperor Daizong in fear that he was being accused of treason. After an initial defeat by other Tang generals, he led his own forces, allied with forces of the Uyghur Khaganate and Tibetan Empire, to attack the Tang capital Chang'an, but died on the way.