王宗弼
As of summer 925, Later Tang's Emperor Zhuangzong was ready to launch a major attack to conquer Former Shu. The campaign was nominally commanded by his son Li Jiji, the Prince of Wei, but actually commanded by the major general Guo Chongtao, nominally Li Jiji's deputy. The Former Shu administration was unaware of the impending attack, and Wang Yan, against the advice by Wang Zongbi and Empress Dowager Xu, insisted on visiting Tianxiong Circuit (天雄, headquartered in modern Tianshui, Gansu); he departed in winter 925, just as the Later Tang forces were entering Former Shu territory. Wang Chengjie (), the military governor of Wuxing Circuit (武興, headquartered in modern Baoji, Shaanxi), reported the emergency to Wang Yan and, after receiving no response, quickly surrendered. Only after the fall of Wuxing did Wang Yan become alarmed, but pursuant to the advice of Wang Zongbi and Song, he stayed at Li Prefecture (利州, in modern Guangyuan, Sichuan), while sending Wang Zongxun (), Wang Zongyan (王宗儼, note different character than Wang Yan's original name), and Wang Zongyu () against the Later Tang forces. They, however, were defeated by the Later Tang forward commander Li Shaochen. Wang Yan fled back to Chengdu in fear, leaving Wang Zongbi in charge at Li Prefecture to continue the resistance. Wang Yan also ordered him to execute Wang Zongxun, Wang Zongyan, and Wang Zongyu. However, Former Shu generals were surrendering in droves – including Song's brother Song Guangbao (), the acting military governor of Wude Circuit (武德, i.e., Dongchuan); Wang Chengzhao (), Wang Zongkan's son and the military governor of Wuding Circuit (武定, headquartered in modern Hanzhong, Shaanxi); and Wang Zongwei () the military governor of Shannan Circuit (山南, headquartered in modern Hanzhong). Major general Guo subsequently wrote to Wang Zongbi to persuade him to surrender. Wang Zongbi abandoned Li Prefecture and rendezvoused with Wang Zongxun, Wang Zongyan, and Wang Zongyu at Baitiao (白芀, in modern Chengdu); he showed them the execution order and planned with them to surrender.