Jia Sidao, the minister of the Tang Dynasty, was rejected and attacked by the opposition for carrying out the reform of the new law, and was eventually exiled to Yizhou.
Su Shi, a famous writer and politician in Song Dynasty, was relegated because of his disagreement with the court dignitaries.
Li Shizhong: Minister of the Ming Dynasty, who was exiled to Yili, Xinjiang for opposing the powerful minister Wei Zhongxian.
Yong Zhengdi: Emperor of the Qing Dynasty, because he couldn't control the situation during the Boxer Rebellion, foreign powers took the opportunity to invade China, which led to Eight-Nation Alliance's invasion of Beijing and was finally deposed.
Liu Ji: A minister of the Han Dynasty was demoted because he wrote a letter to report the dissolute life of the then emperor.
These are just some examples. There are many other celebrities in history who have been green. It should be noted that some people may be rehabilitated or reused in the future.