Northern Yan
The Later Yan conquered the Zhai Wei in 392 and the Western Yan in 394, but lost a series of engagements to the Northern Wei. In 397, the Northern Wei captured Hebei and splitting the Later Yan into two. Murong Bao moved the Later Yan capital north to Liaoning but Murong De refused to move north and founded the Southern Yan in Henan and Shandong. The Southern Yan was extinguished by the Eastern Jin in 410. The Later Yan lasted until 407 when General Feng Ba, killed Emperor Murong Xi and installed Gao Yun. Gao Yun, a descendant of Goguryeo royalty who was adopted into the Murong court, is considered either the last emperor of the Later Yan or the founding emperor of the Northern Yan. In 409, he was killed by Feng Ba, a Han Chinese assimilated to Xianbei culture, who took control of the Northern Yan.