Yuwen Huaji

Yuwen Huaji led a coup at Jiangdu, assassinating Emperor Yang of Sui. He then declared himself emperor of a short-lived state, but his rule was marked by incompetence and brutality, leading to his rapid downfall.

Yuwen Huaji's forces were defeated by the rebel leader Li Mi at the Battle of Tong Pass. Yuwen Huaji was captured and executed, ending his brief reign. His failure to consolidate power allowed the Tang dynasty to emerge as the successor to the Sui.