Meng Zhixiang
In 927, there was an episode where Meng Zhixiang the military governor of Xichuan Circuit (西川, headquartered in modern Chengdu, Sichuan, formed from the main part of former Former Shu territory), who had married a cousin of Li Cunxu's and who was by that point in a strained relationship with Li Siyuan's imperial government, killed Li Yan, who was then serving as an imperial army monitor at Xichuan. Upon hearing of Meng's killing of Li Yan, Li Congyan detained Meng's wife Grand Princess Qionghua and Meng's son Meng Renzan, who Meng Zhixiang had sent for from Luoyang, at Fengxiang; he then submitted a petition requesting instructions on what to do with them. Li Siyuan ordered that he release them to allow them to go on to Xichuan.