王守澄
As of 831, then-reigning Emperor Wenzong was plotting with the chancellor Song Shenxi to eliminate the powerful eunuchs. Song involved the mayor of Jingzhao Municipality (京兆, i.e., the Chang'an region), Wang Fan (), in the planning, and as part of the planning, Wang Fan was to have Zheng killed. Wang Fan, however, leaked the plan to Zheng, who in turn informed Wang Shoucheng. At Zheng's suggestion, Wang Shoucheng, who was then the commander of one of the Shence Armies (), had Doulu Zhu, one of his officers submit an accusation that Song and Emperor Wenzong's brother Li Cou the Prince of Zhang were plotting to remove Emperor Wenzong and replace him with Li Cou. Emperor Wenzong believed the accusations and had Song and Li Cou arrested. Emperor Wenzong initially were set to execute Song, but the other officials urged a thorough investigation. Zheng was fearful that a thorough investigation would show that the accusations were not true, and therefore had Wang suggest to Emperor Wenzong that Song and Li Cou be spared; however, both were demoted and exiled.