Ding Wei vs Li Deyu

Ding Wei was appointed as chancellor (zaixiang) under Emperor Renzong, with Empress Liu as regent. He quickly became a dominant figure at court, using bribery and manipulation to control appointments and policy.

Ding Wei orchestrated the political downfall of his rival Kou Zhun, a respected chancellor. He accused Kou of plotting against the regent Empress Liu, leading to Kou's exile. This event solidified Ding Wei's power but also earned him a reputation for cunning.

Ding Wei introduced fiscal reforms to increase state revenue, including new taxes on commerce and land. These measures were criticized for burdening the populace but temporarily strengthened the Song treasury during a period of military spending.

Ding Wei was exiled to Hainan Island after losing a power struggle with rival chancellors. His exile to the remote tropical island was a severe punishment, reflecting the intensity of Song court factionalism. He died in exile.

Li Deyu was appointed as chancellor during the reign of Emperor Wuzong of Tang. He implemented policies to centralize authority and suppress the power of military governors, but his tenure was marked by intense factional conflict with the Niu faction led by Niu Sengru.

Under Emperor Wuzong, Li Deyu oversaw the Huichang Persecution, a state campaign to suppress Buddhism. Thousands of monasteries were destroyed, monks and nuns were forced to return to lay life, and temple lands were confiscated, severely weakening Buddhist institutions in Tang China.

When Emperor Xuanzong ascended the throne, Li Deyu was dismissed from his chancellorship and exiled to remote Hainan Island. This marked the definitive victory of the Niu faction over the Li faction, ending Li Deyu's political career and leading to his death in exile.