Yan (Five Dynasties period)
Yan, sometimes known in historiography as Jie Yan, was a very short-lived kingdom in the vicinity of present-day Beijing at the beginning of the Five Dynasties and Ten Kingdoms period, which is traditionally dated as being from 907 to 960. Yan, established by Liu Shouguang in 911, only lasted for two years before destroyed by Li Cunxu the prominent leader of Later Tang.
As the only ruler of Yan, Liu was noted for his cruelty, so this Yan was also called Jie Yan, which compared the regime to a former one under the cruel king Jie in Xia Dynasty.