What stupid emperors are there in history?

Jin Huidi, a famous idiot emperor in history, whose real name was Sima Zhong (AD 250-306), was pronounced correctly. Son of Sima Yan, Emperor Wu of Jin Dynasty. Komaya proclaimed himself emperor after his death and reigned for 17 years. He is a famous idiot emperor in the history of China. During his reign, the Eight Kings Rebellion lasted 16 years. Another idiot emperor was Sima Dezong, the Emperor of the Eastern Jin Dynasty. He is the eldest son of Emperor Xiaowu of Jin Dynasty, and he was stupid and dumb since childhood. "Although the changes are cold and hot, there is no way to distinguish them." Dementia can't tell spring, summer, autumn and winter. Emperor Xiaowu knew this son was an idiot before his death, but in order to maintain the hereditary system of the throne and the inheritance system of the county chief, he still had to be a prince. In this way, Sima Dezong proclaimed himself emperor in 397 AD, for the sake of Emperor Jin 'an. Nature is an idiot emperor, who can't manage politics at all, which will inevitably lead to the fall of the powerful emperor, and the ministers will show their magical powers and make a mess of state affairs. Finally, the stupid emperor was hanged by the powerful minister Liu Yupa. There is also an idiot emperor in the history of China, Tang Shunzong Li Yong. He is the eldest son of Tang Dezong. He was extremely intelligent and knowledgeable, but four months before Hangzong died, he suddenly had a stroke and became stupid and dumb. Tang Dezong was a shrewd emperor, but he couldn't help Li Yong succeed to the throne after he discovered that the prince was stupid. Li Yong succeeded to the throne, that is, Tang, and he was in office for only one year. In this year, Wang, Wang? With the support of courtiers Liu Zongyuan, Liu Yuxi, Han Tai and others, the master carried out the famous "Yongzheng Innovation" (Yongzheng Nianhao Shunzong). However, because this innovation harmed the interests of eunuchs and buffer regions, they United against it. Tang Shunzong was forced to abdicate as the emperor's father, and the throne was succeeded by Chunli, the son of Shunzong, to Tang Xianzong. Two kings and Liu and Liu were naturally demoted. Innocent Shunzong also died of fright the following year. The political situation in the Tang Dynasty experienced fierce turmoil, and the situation of eunuch's monopoly and vassal hegemony became more and more fierce.