Tang dynasty
Zhu Wen, originally a salt smuggler who had served under the rebel Huang Chao, surrendered to Tang forces. By helping to defeat Huang, he was granted a series of rapid military promotions. In 907 the Tang dynasty was ended when Zhu Wen, now a military governor, deposed the last emperor of Tang, Emperor Ai of Tang, and took the throne for himself (known posthumously as Emperor Taizu of Later Liang). He established the Later Liang, which inaugurated the Five Dynasties and Ten Kingdoms period. A year later Zhu Wen had the deposed Emperor Ai poisoned to death.
Cheng Rui
Cheng Rui (成汭) (d. June 10, 903), adoptive name Guo Yu (郭禹) (used until ~888), formally the Prince of Shanggu (上谷王), was a warlord late in the Chinese dynasty Tang dynasty who ruled Jingnan Circuit (荊南, headquartered in modern Jingzhou, Hubei) from 888 to 903, when he was defeated in battle and committed suicide. He was known to be a capable administrator who had a reputation for treating his people well.