The Western Jin Dynasty declined, and the Rebellion of the Eight Kings had an unshirkable responsibility, but it was another person who caused the invasion of foreign races, that is, the Boling Duke of the Western Jin Dynasty. The Boling State of the Western Jin Dynasty was located in the territory of the Western Jin Dynasty and had four counties, namely Anping, Raoyang, Nanshenze, and Anguo.

Duke Yuan of Boling - Wang Shen. Wang Shenzi said that it was from the top door valve Taiyuan Wang Clan. Due to the loss of his parents at an early age, he was adopted by his cousin Wang Chang. Wang Shen was very filial and obedient from an early age, and after entering the career path, he was first recruited by Cao Shuang as a subordinate, and then served as a waiter under the Zhongshu Gate.
After the Gaopingling Rebellion, Wang Shen was implicated and dismissed, and although he was soon appointed, he only held some insignificant positions. What really made Wang Shenshi's journey smooth came from one of his whistleblowers. After Wang Shen was reinstated, he was admired by the emperor cao xian at the time, and was often invited to talk about learning and discuss articles together, and over time, Cao Xian regarded him as a confidant. Subsequently, Cao Xian wanted to eliminate Sima Zhao, and consulted Wang Shen and others. As a result, Wang Shen ran to inform Sima Zhao without saying a word, and eventually Cao Xi was killed, but Wang Shen was given the title of Marquis of Anping for his merits, and two thousand households were eaten. After this, Wang Shen was soon promoted to the posts of Shangshu and Yuzhou Assassin. He also sorted out the legal prohibitions since Jia Kui, which made the people of the Nine Counties change their customs and customs.
After Sima Zhao established the fifth rank title, he made King Shen the Marquis of Boling, a position equivalent to that of a second-class feudal state. When Cao Wei sent troops to destroy the Shu Han, Wang Shen was guarding Eastern Wu on the eastern border, and because Wang Shen was well placed to guard the town, the Wu army did not dare to move, and Wang Shen was appointed as the general of Zhennan. After Sima Yan established the Western Jin Dynasty, Wang Shen became the founding father of the country, and was transferred to the rank of general of the Hun Horse, The Scribe of Lu Shang, and the Chang Shi of the Jiashan Horse, commanding the military forces outside the city.
In terms of titles, Sima Yan initially prepared to make Wang Shen the Duke of Boling County, but Wang Shen resolutely resigned, and Sima Yan could only rename him as a county duke with 1,800 households. Despite this, Sima Yan wanted to reuse him and intended to entrust him with the government, but in the second year of taishi (266 AD), Wang Shen died. For Wang Shen's death, Sima Yan was very sad, personally wore filial piety to mourn, and gave a set of coffins, a set of clothes, 300,000 yuan, a hundred horses of cloth, and a burial field, with the title of Yuan. Later, he was posthumously made a county duke.
The second generation of the Duke of Boling - Wang Jun. If Wang Shen was the founding hero of the Western Jin Dynasty, then his son Wang Jun was a sinner of the Western Jin Dynasty. Wang Junzi Pengzu was Wang Shen's illegitimate son, and wang Shen had no other sons besides Wang Jun, but even so, Wang Shen still looked down on this son very much. However, after Wang Shen's death, since he had no other heirs, he could only let Wang Jun inherit the title.
After that, Wang Jun successively served as a lieutenant of the horse, a regular attendant of the Yuanwai Scattered Horse, a permanent attendant of the Yuanwai Horse, a lieutenant of the Qianyue Cavalry School, a general of the Right Army, and a general of dongzhong lang. After the Rebellion of the Eight Kings began, Wang Jun was not willing to be lonely and participated in the abolition and murder of the crown prince Sima Song. Later, he was transferred to the general Ning Shuo and the governor of Youzhou, during which time Wang Jun began to intermarry with foreign tribes in order to protect himself. When Sima Lun usurped the throne and the Three Kings rebelled against Sima Lun, Wang Jun chose to support Sima Lun, which worsened his relationship with Sima Ying.
After Sima Ying and Sima Ying joined forces to defeat Sima Qi, the relationship between the two quickly deteriorated, and Sima Ying attempted to send and assassinate Wang Jun and annex his followers. As a result, the plan was leaked, and Wang Jun secretly raised an army with Sima Teng to kill and perform, and took Youzhou himself. Subsequently, he united with Sima Teng, Duan Wu Bechen, and Wu Huan to discuss Sima Ying, and as a result, Sima Ying was defeated and the city of Yicheng fell. In the process, the humble soldiers began to wreak havoc.
Because of his support for Sima Yue, after he took power, he appointed Wang Jun as a general of the Hussars and the governor of dongyi hebei, leading the history of youzhou, and incorporating the state of Yan into the fiefdom of the Duke of Boling. After Sima Chi succeeded to the throne, he promoted Wang Jun to Sikong and added Karasuma as a lieutenant. But after that, Wang Jun met his life's biggest rival, Shi Le. After a battle, Shi Le took advantage of Wang Jun's ambition to claim the title of emperor himself, pretending to surrender and support Wang Jun, and in the second year of Jianxing (314 AD), Shi Le defeated and killed Wang Jun at the age of sixty-two.
The third Duke of Boling, Wang Daosu. After the fall of the Western Jin Dynasty, the boling state also disappeared for a time, and it was not until the time of Sima Yao, the emperor of Xiaowu, that Wang Shen was re-found from Sun Daosu and made him the Duke of Boling.
The last Duke of Boling - Wang Chongzhi. Wang Daosu served as the Duke of Boling for several years, but the history books do not explain it, only that his son Wang Chongzhi subsequently inherited the title. However, it was later renamed as the Duke of Dongguan County, so the Boling Kingdom became history.