Nomadic empire
The Xiongnu were a confederation of nomadic tribes from Central Asia with a ruling class of unknown origin and other subjugated tribes. They lived on the Mongolian Plateau between the 3rd century BC and the 460s AD, their territories including modern day Mongolia, southern Siberia, western Manchuria, and the modern Chinese provinces of Inner Mongolia, Gansu, and Xinjiang. The Xiongnu was the first unified empire of nomadic peoples. Relations between early Chinese dynasties and the Xiongnu were complicated and included military conflict, exchanges of tribute and trade, and marriage treaties. When Emperor Qin Shihuang drove them away from the south of the Yellow River, he built the famous Great Wall to prevent the Xiongnu from coming back.
Xiongnu
During the late 2nd century AD, the southern Xiongnu were drawn into the rebellions then plaguing the Han court. In 188, the "chanyu" was murdered by some of his own subjects for agreeing to send troops to help the Han suppress a rebellion in Hebei – many of the Xiongnu feared that it would set a precedent for unending military service to the Han court. The murdered "chanyu's" son Yufuluo, entitled Chizhisizhu (), succeeded him, but was then overthrown by the same rebellious faction in 189. He travelled to Luoyang (the Han capital) to seek aid from the Han court, but at this time the Han court was in disorder from the clash between Grand General He Jin and the eunuchs, and the intervention of the warlord Dong Zhuo. The "chanyu" had no choice but to settle down with his followers in Pingyang, a city in Shanxi. In 195, he died and was succeeded as "chanyu" by his brother Huchuquan Chanyu.