Chizhishizhuhou Chanyu
The southern Xiongnu were a branch of the eastern Xiongnu that followed the rebellious pretender Huhanye and in 51-53 BC moved en masse within the Han borders under protection of Chinese. Since the times of Huhanye, the status of the southern Xiongnu was loyal allies of the Han Dynasty. The southern Xiongnu enjoyed material support of the old "heqin" treaty, and in return guarded the Chinese northern borders and participated in the Chinese external and internecine conflicts as long as the Chinese court respected their independence. However, when the Han imperial court attempted to appoint an ineligible for the crown Western Jükü-Prince Yufuluo from ineligible Right Wing as a Chanyu, instead of respecting the traditional election, the southern Xiongnu dissented and elected a lawful alternate Hyuibu Gudu-heu. Later they expelled Yufuluo, who had to seek safety in exile at the Han imperial court.
History of Siberia
As early as the first millennium BCE, trade was underway over the Silk Road. Silk goods were imported and traded in Siberia.
The establishment of the Xiongnu empire in the 3rd century BCE started a series of population movements. Many people were probably driven to the northern borders of the great Central Siberian Plateau. Turkic people such as the Yenisei Kirghiz had already been present in the Sayan region. Various Turkic tribes such as the Khaka and Uyghur migrated northwestwards from their former seats and subdued the Ugric people.