During the China Chaos, foreigners entered the Central Plains one after another and established one force after another in the Central Plains. The great powers of all walks of life fought for their own interests, and the people of the Central Plains were bitter and bitter, and treated each other honestly. At that time, Zhang Gui, the descendant of Changshan King in the Western Han Dynasty, looked at the disintegration of people in troubled times and asked for a two-week secretariat, because Liangzhou was the place where the Hu people and Han people gathered and was the most contradictory area. Zhang Guizi wants to make contributions from Liangzhou to defend the country. At that time, aristocratic officials also supported Zhang Gui's recommendation, and Zhang Gui became the secretariat of Liangzhou.
However, when Wuhu went south to the Central Plains, many gentry in the Central Plains moved south to avoid disasters. So there are only two Han strongholds in the north, one is Liangzhou, and the other is Jinyang and Liu Kun. During the China chaos, a large number of Han people were killed by Wuhu, and five times as many Han people took refuge in Qianhan. Zhang Gui did not drive them away, but divided an area for those refugees to live in. Liang Qian suddenly became the biggest refuge for the Han people, and Zhang Gui also divided fields for refugees to make a living.
Soon after, Zhang Gui directly established Liang Qian's political power in Liangzhou, with a land area of10.2 million square kilometers, making it the only political power established by the Han people among the sixteen countries. At that time, Zhang Gui accepted millions of Han people, and Liang Qian persisted for 76 years from its establishment to its demise. During that period, the Han people in Qianliang married the Hu people and gradually formed the Guanlong Group. The later founding kings of the Western Wei Dynasty, the Northern Zhou Dynasty, the Sui and Tang Dynasties all came from Guanlong Group.