During the great ( assembly) of 1206, Temüjin, newly entitled Genghis Khan, appointed many of his leading commanders to high positions in the new
Mongol state. Among them,
Muqali and
Bo'orchu were honoured above all others, receiving legal protection and command of wings of the
Mongol army. Shigi Qutuqu took offence to this generosity, with the
Secret History recording his words as follows: "Have Bo'orchu and Muqali rendered greater service than others? Have they given more of their strength than others? When it comes to distributing rewards I appear to have rendered less service [than they]!" Genghis Khan's response, as recorded in the
Secret History, was to instruct Shigi Qutuqu to "punish the thieves and put right the lies" by documenting all legal details, including those concerning rewards distribution, in a ( blue book). He entrusted Shigi Qutuqu with legal jurisdiction throughout the entire Mongol nation, making him the first ( judge) alongside Genghis's own half-brother
Belgutei, who was appointed Minister of State. Modern historians consider this account biased: Ratchnevsky suggests that the
Secret History, seeking to demonstrate that Genghis Khan was influenced by those around him, "obviously exaggerates Shigi Qutuqu's authority", while Atwood believes that the chronicle conflated the events of the 1206 with subsequent appointments, when Shigi Qutuqu may have replaced Belgutei. Nevertheless, Shigi Qutuqu was at some point charged with maintaining the laws of the Mongols, possibly by establishing a kind of
case law, as was later recorded by Rashid al-Din. He probably did not compile these records personally, and instead supervised
scribes also taught by Tatar Tong'a. , depicted in the
Jami al-tawarikh (
Bibliothèque nationale de France,
Paris) Shigi Qutuqu participated in the
first Mongol campaign against the Jin dynasty in North China. After
Emperor Xuanzong fled south to
Kaifeng, the city of
Zhongdu fell to the Mongols after
a long siege on 31 May 1215. Although the city was thoroughly
plundered, Genghis Khan personally dispatched Shigi Qutuqu to secure and confiscate the Jin dynasty's treasury. For his honest accounting and recording of the plunder, he was praised highly by Genghis Khan—an event not only recorded in the
Secret History and by Rashid al-Din but also in the late thirteenth-century
Shengwu qinzheng lu. The
History of Yuan, composed , notes that Shigi Qutuqu took administrative roles following the occupation of northern China, with his remit including the appointments of minor officials. Leading the imperial
vanguard during the
Mongol invasion of the Khwarazmian Empire in Central Asia, Shigi Qutuqu was in command during the
Battle of Parwan, the first defeat of the campaign for the Mongols. This reverse was described in detail by Rashid al-Din and other Persian chroniclers such as
al-Nasawi and
Ata-Malik Juvayni, and more laconically by the Mongol chronicles: the
Secret History, the
Shengwu qinzheng lu, and the
History of Yuan. According to the Persian chroniclers, Shigi Qutuqu had sacked and burned the city of
Ghazni with around 10,000 soldiers and been involved in the capture of
Nishapur, before helping to
besiege Merv. He was subsequently dispatched with around 30,000 men to defeat the renegade
Khwarazmian prince
Jalal al-Din Mangburni in early 1221 but was repulsed by his enemy after two days of hard fighting, narrowly escaping a painful death at the hands of Jalal al-Din's forces. News of the Mongol defeat triggered an uprising in the city of
Herat, which had previously submitted and which was subsequently annihilated. Upon hearing of his adopted son's defeat, Genghis Khan masked his private distress with anger and set out to avenge the loss with his three elder sons—
Jochi,
Chagatai, and
Ögedei. He criticised Shigi Qutuqu's choice of battlefield, and noted that he thought his adopted son had been spoiled by constant victories. At the
Battle of the Indus, during which Genghis comprehensively defeated Jalal al-Din, Shigi Qutuqu was appointed to guard the captured Khwarazmian soldiers. ==Under Ögedei Khan==