Fu Pi
Immediately, the struggle was on for Murong Chui to capture the territory that was formerly Former Yan's. Both he and Murong Nong quickly captured many cities. Luoyang and Yecheng were isolated. Fu Pi tried to persuade him to stop his rebellion, but he refused, and instead tried to persuade Fu Pi to leave Yecheng with his forces intact; Fu Pi refused, and Murong Chui put Yecheng under siege. With Former Qin now facing further rebellion by Murong Chui's nephews Murong Hong and Murong Chong, and Yao Chang, in the west, Yecheng was not able to receive any reinforcements, but Murong Chui was still unable to capture it quickly. When Zhai Bin, in disappointment over not given a prime ministerial title, considered switching sides again to Former Qin, Murong Chui killed him. Zhai Bin's nephew Zhai Zhen (翟真) rebelled against Later Yan, and for the next several years, while battling Former Qin remnants, Murong Chui also had to battle Dingling forces under Zhai Zhen and later his cousins Zhai Cheng (翟成) and Zhai Liao. Briefly during early 385, he also had to battle Jin forces, which had taken most of the territory south of the Yellow River and was in a temporary alliance with Fu Pi. The future of his Later Yan state did not appear particularly bright at this point. However, after moving north to pacify most of modern Hebei, Murong Chui was eventually able to take Yecheng late in 385 when Fu Pi abandoned it and moved west. (Fu Pi, upon hearing that Fu Jiān had died earlier that year at Yao's hand, then declared himself emperor, but did not pose a further threat to Later Yan.) While isolated pockets of Former Qin resistance remained, by the end of 385 Former Yan was largely in control of the territory north of the Yellow River and east of Taihang Mountains.