Li Siyuan
In 926, Emperor Zhuangzong, who had alienated his soldiers due to his failure to properly reward them for their contributions during his campaigns, was facing a mutiny by the Weibo Circuit (魏博, headquartered in modern Handan, Hebei) army. He initially sent the general Li Shaorong to try to suppress the rebellion, but Li Shaorong was unable to do so. Zhang, instead, recommended the senior general, and Emperor Zhuangzong's adoptive brother, Li Siyuan. Upon Li Siyuan's arrival at Weibo, however, his own soldiers mutinied and forced Li Siyuan to join the Weibo soldiers in the rebellion. Li Siyuan subsequently led his army south, toward Kaifeng. When Zhang heard this, he became fearful as he was the one who had recommended Li Siyuan, and he stopped eating. He died soon thereafter.