King Gongmin

Gongmin launched military campaigns to reclaim northern territories that had been ceded to the Yuan dynasty. Goryeo forces recaptured the Ssangseong and Dongnyeong regions, restoring the kingdom's traditional borders.

King Gongmin expelled Mongol officials and military personnel from Goryeo, ending the Yuan dynasty's direct control over the kingdom. He abolished the Mongol-style administrative offices and reasserted Goryeo's sovereignty.

Gongmin implemented a series of reforms to eliminate Mongol influence, including restoring Korean names for government offices, reviving Confucian rituals, and promoting native Korean culture. These reforms strengthened national identity.

Queen Noguk, Gongmin's Mongol wife and close advisor, died under mysterious circumstances, possibly by poisoning. Her death deeply affected Gongmin, leading to his increasing paranoia and erratic behavior in later years.

King Gongmin was assassinated by his eunuchs and close aides, possibly with the involvement of pro-Mongol factions. His death ended the reform era and led to a period of political instability in Goryeo.