The Western Xia was an armed separatist feudal regime mainly built by the Tangut Qiang people from 11th century to 13th century.

The map of migration of the Tangut people

The Genealogy Table of the Western Xia emperors
  The Tangut was a branch of the ancient Qiang people in China. They lived in the intersection area of today’s Qinghai, Sichuan and Tibet. In the early Tang Dynasty, they migrated to the east of Gansu province and the north of Shaanxi province. In the later Tang Dynasty, the Pingxia Tribe of the Tangut, which settled in the Xiazhou(the west part of Hengshan county in Shaanxi province), participated in suppressing the uprising led by Huangchao.  Because of the achieved good results in the war, the chief , Tuoba Sigong was conferred the title of Duke of Xia , the military envoy of Dingnan Army. Since then a strong armed separatist feudal regime gradually formed.
  In the Five Dynasties and Ten Kingdoms Period, the  nobilities of Tangut people strengthened their forces by making use of the conflicts between the armed separatist feudal regimes. Till the early Song Dynasty, with the support from Liao Kingdom , the chief Li Jiqian of the Tangut people countered Song Dynasty and conquered Lingzhou( the southwest of Lingwu county of Ningxia ),set it up as Xiping Fu, which laid the foundation for the Western Xia Kingdom. The politics and the economy of the Tangut people had deeply changed influenced by the Han’s feudalism culture. Through the development in the time of Li Deming, the Tangut nobilities had changed their roles from chiefs of tribes to feudal landlords in the time of Weiming Yuanhao.  They urgently needed to build up their own regime, united the politics, economy and culture of tribes and guaranteed their benefits. In 1038, Yuanhao crowned himself in Xingqing Fu and officially founded the Xia Kingdom. As in the west of China, it was called the Western Xia.

The chronology of the Western Xia

The ownership of the mausoleums
  The Western Xia regime speeded up its feudal progress imitating the institutions of Tang Dynasty and Song Dynasty during the intermittent war with Song Dynasty. The politics, economy and culture of the Western Xia kept developing based on the advanced production skills and rich experience.  In 1115, the Jin Regime wiped out the Liao Regime and the Song Regime migrated to the south of China. The Western Xia took the policy of getting well with the South Song Dynasty and the Jing Kingdom. Its development in politics, economy and culture peaked in the 54 years of Weiming Renxiao’s government. In the later years of the Western Xia, the conflicts between the different classed in the kingdom, the Uprisings and the revolts from the inner and out parts,put the Western Xia to the end. In 1227, with the fierce attacks from the Mongolian army, the Western Xia Regime died out eventually.