The Succession Dispute between Han Jiu and Ji Se

After King Xiang of Han died, a violent succession conflict erupted between his sons, Prince Jiu and Prince Ji Se. Ji Se, initially named heir and supported by the powerful minister Gong Shu, faced strong opposition from Jiu's faction, which included the Queen Dowager and other nobles. Accused of plotting rebellion, Ji Se fled to the State of Chu for safety. Through political maneuvering, military intimidation, and diplomatic pressure from allied states, Jiu consolidated power and ascended the throne as King Xi of Han. Ji Se remained in exile, and his supporters were purged. The case epitomizes the brutal factional struggles and fragile legitimacy of royal succession during the Warring States period.

Prince Jiu successfully took the throne as King Xi of Han. Prince Ji Se was permanently exiled and stripped of all claims to the throne. The power struggle was resolved through force and political intrigue rather than formal legal trial.

The core dispute was the legitimacy of the succession to the Han throne, centering on whether Ji Se's designation as heir should be honored or overturned in favor of Jiu, and whether Ji Se's alleged conspiracy justified his removal and exile.

The dispute deepened factionalism within the Han court, weakened central authority, and left the state more vulnerable to external aggression during the Warring States era. It demonstrated the destabilizing consequences of ambiguous succession rules, and served as a cautionary tale for later dynasties on the need for clear and enforceable inheritance laws.