Illig Qaghan (Old Turkic: ; ; died 13 February 634), born Ashina Duobi (), posthumous name Prince Huang of Guiyi (æ¸義èÂÂçÂÂ), was the last qaghan of the Eastern Turkic Khaganate.
Illig Qaghan was a son of Yami Qaghan and his Tuyuhun wife Poshi (å©Âæ½). He was raised by the Tuyuhun general Külüg Tarkhan (è¡祿éÂÂå®Â). After coming of age, he was given the title Baghatur Shad (è«è³ÂÃ¥ÂÂè¨Â) and was assigned to rule the eastern parts of the empire.
He declared himself Illig Qaghan, ruler of the Eastern Turkic Khaganate, after the death of his older brother Chuluo and married his brother's widow. He gave his nephew Ashina Shibobi the title of Tolis Qaghan afterwards and assigned him to his own former tribes. He continued his predecessors' pro-Sui politics, supporting puppet emperors.
His first contacts with the Tang were very hostile. In 621, Turkic forces attacked Fenyin and Xi territories, reaching as far south as Yanmen in April. In response, Turkic ambassadors were arrested in China and vice versa. In May, Illig's forces crushed Tang forces commanded by Li Shuliang (æÂÂÃ¥ÂÂè¯), Emperor Gaozu's cousin who died from arrow wounds after a month. They were repelled later by Yang Shidao.
Later raids were accompanied by Gao Kaidao and Yuan Junzhang (èÂÂÃ¥ÂÂçÂÂ), a general formerly under Liu Wuzhou. To stop the raids, Gaozu offered Illig tribute and a Chinese princess. He accepted the proposal and both states released the arrested envoys.
The raids started again in 623. Illig was assisted by Gao Kaidao and Liu Heita in sieging and capturing Mayi (present-day Shuozhou, Shanxi). Yuan Junzhang was appointed governor of Mayi. But Mayi was soon returned to the Tang by Illig in hopes of attaining a marriage to a Tang princess.
Later Liang Luoren (æ¢Âæ´Âä»Â), the brother of Liang Shidu attacked Ling prefecture with assistance from the Eastern Turks. However Li Daozong (a cousin of Taizong) repelled him, and expelled the Illig's nephew Ashina Yushe (é¿å²é£éÂÂå°Â) from the Wuyuan (äºÂÃ¥ÂÂ, in modern Yulin, Shaanxi).
As raids were becoming more frequent in 624, Li Shimin stepped up to accuse Ashina Shibobi of breaking his brotherhood vows, which made Illig Qaghan grow suspicious of Shibobi. Illig soon attempted to seek peace, sending his uncle Ashina Simo and Ashina Shibobi to negotiate.
In 625, Illig Qaghan attacked Ling Prefecture (éÂÂå·Â, roughly modern Yinchuan, Ningxia). Emperor Gaozu sent the general Zhang Jin (å¼µç¾) to fight the Turks with Wen Yanbo serving as Zhang's secretary general. When Zhang engaged Illig, however, he suffered a major defeat, and Wen was captured. As Wen was an important official, Illig interrogated him and asked about the strengths and weaknesses of the Tang state. Wen refused to answer and Illig moved him to the Yin Mountains.
In 626, just 19 days after Emperor Taizong took the throne, Shibobi and Illig were just across the Wei River from Chang'an. Emperor Taizong, accompanied by Gao Shilian and Fang Xuanling, met the Turks across the river and personally negotiated peace terms, which included giving tribute to Eastern Turks, before Illig withdrew.
In 627 he attempted to levy horses from the vassal Tiele tribes after all his livestock died from a snowstorm. The Tiele revolted under a Xueyantuo coalition. Emperor Taizong of Tang wasted no time in allying with these Tiele and the Khitans in a joint attack. Illig was already facing internal dissent from the Göktürk generals jealous of the influence of Illig's Sogdian viziers.
In response, Illig gave 100,000 cavalry to Yukuk Shad to suppress the revolts. However Yukuk was defeated by Huige forces commanded by Pusa (è©è©) near Malie (near modern Gansu). Later, more Turkic generals were defeated by the Xueyantuo.
In 628 Kumo Xi tribes also rose in rebellion against the Eastern Turks. Eastern governor Ashina Shibobi was unsuccessful in defeating rebels, which made Illig angry and ordered him to be flogged and imprisoned for 10 days. Taizong used this opportunity to invite him to flee to the Tang.
In the summer of 628, when a number of Khitan tribes surrendered to the Tang, Illig offered to trade Liang Shidu for the Khitan tribes, but Emperor Taizong refused stating Liang was already on verge of surrendering himself and the Khitan were not Turks. Meanwhile, Emperor Taizong sent his brother-in-law Chai Shao and the generals Xue Wanjun (èÂÂèÂŒÂÂ), Liu Lancheng (Ã¥ÂÂèÂÂæÂÂ), and Liu Min (Liang's former subordinate) to pressure Shuofang. They soon defeated the Eastern Turkic forces and put Shuofang under siege, and Eastern Turkic forces were unable to lift the siege. When the food supplies ran out, Liang Shidu's cousin Liang Luoren assassinated Liang Shidu and surrendered the city to the Tang.
Around the new year 630, with the Eastern Turkic Khaganate in internal turmoil, Illig attacked Ashina Shibobi. In response Emperor Taizong commissioned Li Jing, Li Shiji, Wei Xiaojie, Li Daozong, Chai Shao, and Xue Wanche (èÂÂè¬徹) to attack the Eastern Turkic Khaganate, with Li Jing in overall command. Li launched a surprise attack from Mayi through Wuyang Range (æ¡é½嶺, in modern southern Hohhot, Inner Mongolia), capturing the important city of Dingxiang (å®Âè¥Â, in modern Hohhot). In fear, Illig retreated to Qikou (磧å£, in modern Xilin Gol League, Inner Mongolia). Li Jing then sent secret messengers to persuade his associate to surrender. One of them, Kangsumi (康èÂÂå¯Â), took Emperor Yang's wife Empress Xiao and their grandson Yang Zhengdao, whom Chuluo Khagan had made Prince of Sui, and surrendered to Li Jing. Illig sent messengers to Emperor Taizong, offering to submit and to pay homage to him later, but was still considering fleeing further with his forces. Emperor Taizong sent the official Tang Jian as an envoy to Illig, but also ordered Li Jing to escort him. Li Jing, reading between the lines and believing that Emperor Taizong's order was to attack Illig. And after joining forces with Li Shiji, launched the attack. They defeated and captured most of Illig's remaining forces and killed his wife, Sui's Princess Yicheng. Illig fled further, and was soon captured by his own men Ashina Sunishi (é¿å²é£èÂÂ尼失) and Ashina Nishu who handed him over to Li Daozong and Zhang Baoxiang (張寶ç¸). He was brought back to Chang'an to face Taizong on 29 March, 630. After listing his crimes against the Tang, Taizong spared him.
In his later years, the former Illig grew ill in morale. In 632 Taizong made him a commander and appointed to be a governor of Guó Prefecture which was rich with deer, but he declined. He died in February 634 and was made Prince of Guiyi (æ¸義çÂÂ) and posthumously named Huang (èÂÂ) by Taizong. His teacher Kulug Tarkhan was also reported to have taken his own life in sadness. Cen Wenben was ordered to carve a memorial stone.
He was married to Princess Yicheng of Sui and a number of wives. He had at least five children: