Battle of Fei River
As a result of Murong Lin's treachery, after Former Qin conquered Former Yan later in 370, and Murong Chui accompanied the Former Qin emperor Fu Jiān in entering Yecheng, Murong Chui put Murong Lin's mother to death, but did not have the heart to execute Murong Lin as well, but only expelled him from the household and ordered him to live elsewhere. However, in late 383 and 384, as Murong Chui rose against Former Qin following Fu Jiān's defeat at the Battle of Fei River at the hand of Jin troops, Murong Lin offered many useful strategies to his father, and his father changed his view of Murong Lin, favoring him as much as other sons.