[2] After a rebellion broke out in Xinjiang under the leadership of East Turkestani warlord Jahangir Khoja in 1826,[3] the Daoguang Emperor sent Lu Kun to Shaanxi and Gansu where he was to raise troops to retake the four western cities captured by the rebels.
Lu Kun gained the admiration of Daoguang for his successful accomplishment of this mission and received promotion to first grade scholar-official (Yīpǐn dǐngdài, 一品顶戴).
Lu now became responsible for the Canton System operated in the southern port by a group of Chinese merchants known as the Cohong from the Thirteen Factories on the banks of the Pearl River.
On the orders of the emperor, Lu rebuffed the Englishman's approach: "The Barbarian Eye (a reference to Napier), if he wishes to come to Canton, must inform the Hong merchants so that they may petition me.
Lu then issued an edict ordering the British emissary to return to Macao and decreed a temporary halt on trade with Great Britain to back up his words.
This only made matters worse, leading Lu to announce publicly: "The Barbarian Eye is indeed stupid, blinded, ignorant ... there can be no quiet while he remains here.