Ghazan Khan vs Gongmin of Goryeo

Ghazan implemented a comprehensive reform program including tax reform, standardization of weights and measures, land redistribution, and the establishment of a new legal code. He also reformed the military and postal system, stabilizing the Ilkhanate after decades of instability.

Ghazan converted to Islam upon ascending the throne, becoming the first Ilkhan to adopt the faith. He publicly declared Islam the state religion, ordered the destruction of Buddhist temples and churches, and adopted the name Mahmud. This transformed the Ilkhanate's identity.

Ghazan patronized scholars, historians, and scientists, including the vizier Rashid al-Din, who wrote the Jami' al-tawarikh, a world history. Ghazan also built observatories, hospitals, and mosques, contributing to the cultural flowering of the Ilkhanate.

Ghazan led three major invasions of Mamluk Syria, capturing Damascus and Aleppo in 1299

Ghazan's Mongol army defeated the Mamluks under Sultan Al-Nasir Muhammad at Wadi al-Khaznadar near Homs. The victory allowed the Mongols to occupy Damascus and Aleppo, but they withdrew after a few months due to logistical problems and the need to return to Persia.

Gongmin purged pro-Yuan officials and abolished Mongol-style institutions, reasserting Goryeo's independence. He also reclaimed territories in the northwest, ending decades of Mongol domination.

Gongmin's Mongol wife, Queen Noguk, died during childbirth, though rumors of poisoning circulated. Her death deeply affected Gongmin, leading to his withdrawal from governance and increased reliance on Buddhist monks.

Gongmin implemented land reforms to reduce the power of Mongol-aligned nobles and redistribute land to peasants and loyal officials. This weakened Yuan influence and strengthened the central government.

Gongmin was assassinated by his close attendant Hong Ryun and other conspirators, possibly due to his erratic behavior and neglect of state affairs. His death plunged Goryeo into political chaos.