changed its name back to Chengde, and was also thereafter known as Zhao) and Yiwu. The Jin forces advanced as far south as Tianxiong (i.e., Weibo), before withdrawing due to fears that Liu Shouguang might decide to attack from the rear. From this point on, Chengde and Yiwu became firm Jin allies and again resumed the use of Tang era names. After the Later Liang defeats at Lu Prefecture against Jin and at Boxiang against the joint Jin/Zhao/Yiwu armies, Emperor Taizu wanted opportunities to avenge himself against these enemies, and was irritable and even more violent to his own subordinates after, for some time in 911, he was unable to entice the Jin/Zhao forces into a confrontation. Further, his illnesses were recurring, further causing him to be more irritable. He thought he got the chance in 912 when Jin, with assistance from Zhao and Yiwu, launched an attack on Liu Shouguang (who had declared himself the emperor of a new state of Yan), seeking to destroy Yan. Emperor Taizu decided to try to save Liu by attacking north with a massive army. However, after the forward scouts were defeated and captured by the Jin general Li Cunshen (Li Cunxu's adoptive brother), Li Cunshen and fellow Jin officers Shi Jiantang () and Li Sigong () misled Emperor Taizu into believing that the defeat was one of a greater scale and that a massive Jin army was approaching. The Later Liang emperor fled in a panic with heavy losses. After the defeat, he became even more seriously ill, and he returned to Luoyang. Meanwhile, it was said that in his latter years, after Lady Zhang's death, Emperor Taizu became increasingly licentious. (One example would be in 911, when he was spending the summer at the summer mansion belonging to Zhang Quanyi (who had changed his name to Zhang Zongshi after Emperor Taizu took the throne, to observe naming taboo). While at Zhang's mansion, it was said that Emperor Taizu had sexual relations with nearly all of the women of the Zhang household, causing an insulted son of Zhang Zongshi's, Zhang Jizuo (), to consider assassinating him, only to be stopped by Zhang Zongshi, who cited Emperor Taizu's previously saving their house when they were under Li Hanzhi's attack.) It was said that with Emperor Taizu's sons often away from the capital on missions, he would summon their wives into the palace to