According to the broadcast platform Iqiyi, in episode 15 of TV series Pang Zhenkun, the old prince made Pang Zhenkun drink silver soup in order to play tricks on Pang Zhenkun, while Pang Zhenkun used rootless golden tea. The old prince's plan failed.
Pang Zhenkun was a gifted scholar in Dengzhou, Henan Province during the Qianlong period of Qing Dynasty. In eighteen years, Qianlong paid tribute, and in twenty-seven years, he was promoted. He successively served as county magistrate of wuxuan county, Zhou Xun prefecture, and Cenxi county, Wuzhou prefecture.