Li Sizhong (李思忠), né Ormizt (嗢沒斯), formally the Prince of Huaihua (懷化王), was a general of the Chinese Tang Dynasty of Huigu ancestry, who submitted to Emperor Wuzong after the collapse of the Huigu Khaganate in 840 and subsequently served the Tang imperial government. Name His Old Uyghur name is reconstructed as Ormïzt, which transcribed Sogdian wrmzt "Ormuzd", ultimately derived from Ahura Mazda "Lord of Wisdom", the chief creator god of Zoroastrianism. Background Little is known about Wamosi's early years, and it is not known when he was born. The first reference to him in Chinese historical sources, chronologically, was in 840, during the reign of Tang Dynasty's Emperor Wuzong. That year, Xiajiasi (Kirghiz) forces, under the Xiajiasi khan Are (阿熱), defeated and killed Huigu's khan Yaoluoge Hesa (藥羅葛闔馺) and chancellor Jueluowu (掘羅勿). The Huigu people scattered; some fled to the Geluolu (葛邏祿) tribes; some fled to Tufan; and some fled to Anxi (安西, in modern Aksu Prefecture, Xinjiang). Some of the Huigu people, led by Wamosi — who was said to be a brother of a khan (and the modern historian Bo Yang believed that he was Yaoluoge Hesa's brother), along with the chancellors Chixin (赤心), Pugu (僕固), and the noble Najiachuo (那頡啜) (*Nağïd Čur), arrived at the Tang border city of Tiande (天德軍, in modern Bayan Nur, Inner Mongolia). They traded for food with other non-Han tribesmen, while seeking protection from Tang. Submission to Tang In spring of 841, another group of Huigu remnants had supported another noble, Yaoluoge Wuxi (藥羅葛烏希), to be the new khan (as Wujie Khan). The defender of Tiande, Tian Mou (田牟) and eunuch monitor Wei Zhongping (韋仲平), wanting to crush Wamosi's group of Huigu in order to claim it as their achievement, thus claimed that Wamosi was a Huigu rebel and, based on the past alliance between Tang and Huigu, should be attacked. Most imperial officials agreed, but the lead chancellor, Li Deyu, pointing out that Wamosi had fled to Tang borders long before Wujie Khan claimed the khan title, argued that Wamosi was not a rebel. He advocated accepting Wamosi's submission. Emperor Wuzong, while not immediately doing so, ordered Tian not to provoke the Huigu, while ordering the armies of Hedong (河東, headquartered in modern Taiyuan, Shanxi) and Zhenwu (振武, headquartered in modern Hohhot, Inner Mongolia, which Tiande was part of) Circuits to mobilize to prepare to respond if the Huigu army