 Emperor Gaozong supported settling a peace treaty with the Jurchens and sought to <unk> in the assertiveness of the military . The military expeditions of Yue Fei and other generals were an obstacle to peace negotiations . The government weakened the military by rewarding Yue Fei , Han Shizhong , and Zhang Jun ( 1086 – 1154 ) with titles that relieved them of their command over the Song armies . Han Shizhong , a critic of the treaty , retired . Yue Fei also announced his resignation as an act of protest . In <unk> Qin Hui had him imprisoned for insubordination . <unk> with treason , Yue Fei was poisoned in jail on Qin 's orders in early 1142 . Jurchen diplomatic pressure during the peace talks may have played a role , but Qin Hui 's alleged <unk> with the Jin has never been proven . 
