Sun Ru
It was said that Zhu Yanshou had much contributions serving under Yang Xingmi in Yang's campaigns to eventually rule Huainan, against other contenders Qin Yan, Bi Shiduo, Zhao Huang, and Sun Ru, although the first concrete reference to Zhu's acts was in 891 when Sun, then in control of Huainan's capital Yang Prefecture (), was set to attack Yang Xingmi, who was then at Xuan Prefecture (宣州, in modern Xuancheng, Anhui). Yang Xingmi sent Zhu and Liu Wei () to engage Sun at Huangchi (黃池, in modern Wuhu, Anhui), but Zhu and Liu were defeated by Sun. (Sun's advances were subsequently hampered by severe flooding, however, and he withdrew.)