Let's start with the chaotic situation. Five Hu and Sixteen Kingdoms, one word is messy, and two words are too messy.
The Xiongnu, Xianbei, Qian, Di, and Qiang rose up and developed to the south, some of them were good-tempered and lived in harmony with other ethnic groups, and some of them were short-tempered and carried out regime subversion and massacre.
There are more than 20 regimes in total, and there are quite a lot of Yan kingdoms of the Murong clan, including Former Yan, Later Yan, Western Yan, Southern Yan, Northern Yan, etc.
The earliest is Qianyan, is the ancestor of the later Yan countries, the Xianbei Murong clan in western Liaoning saw the slaughter by the Sima family, very empty Liaodong region, so the Murong family in western Liaoning collectively migrated to Liaodong with a more superior natural environment and a better geographical location, the founder of Qianyan was Murong Hao, who openly established himself as the king of Yan for the first time in history and established the first Yan country. Later, his son Murong Jun continued to expand his territory and develop the Yan State during his reign, especially Murong Chui led his troops to fight extremely bravely, and was good at using stratagems, and his fame shocked the world, but his merits were high, and Murong Chui was constantly excluded in the future, and gradually moved away from the political center of Yan State.
Murong Chui later established Houyan, the most powerful of the five Yan Kingdoms, and also had a story with Fu Jian, the brightest emperor star in that dark time.
Both the Southern Yan and the Northern Yan are appendages of the Later Yan, while the Western Yan is very weak and not to be a cause for concern, and soon decays and perishes.
The answer came out, Beiyan was not established by the descendants of the Murong clan, and the founder was the adopted son Murong Yun, a descendant of Goguryeo in North Korea, with the surname Gao. It was re-established after the coup d'état of Feng Ba, the powerful minister at that time, because the relationship was relatively close to Feng, and because it was not a descendant of the Murong family, the name was not right, and it was easy to be controlled by himself. Later, as expected, after Feng Ba's death, his younger brother Feng Hong killed Feng Ba's many sons and established himself as the emperor, so the civil strife continued, Emperor Taiwu of the Northern Wei Dynasty Tuoba Tao led his troops to attack the Northern Yan, Feng Hong was unable to resist the Northern Wei, so he fled to Goguryeo, asked for dependence, the Northern Yan perished, and the country was only 30 years.
Murong has a long history of entrepreneurship, lasting about 100 years, with ups and downs, highs and lows, and even Murong Fu of the Northern Song Dynasty still wants to restore the country and restore the country.