I want to know, are there any great men or celebrities who are slightly retarded or stupid in history?

In the first year of Taixi (290), after the death of Sima Yan, Emperor Wu of Jin Dynasty, his son Sima Zhong ascended the throne as Emperor Jinhui. Jin Huidi is a typical bad king in the history of China. He didn't like reading since he was a child. He only knows how to eat, drink and be merry all day, and doesn't do anything serious. Sima Yan was very worried about this, fearing that Sima Zhong would lose the family business started by his ancestors. Sima Yan, Emperor Wu of Jin Dynasty, once asked Sima Zhong a few questions to test his thinking ability and gave him three days to hand in his papers. Sima Zhong didn't know how to answer the question. His wife Jia Nanfeng is a very clever person. Seeing this, she immediately invited several learned old gentlemen to solve problems for Sima Zhong. After reading the answer sheet, Sima Yan felt that his son's thinking was still very clear, and he was relieved. However, when Sima Yan died and Sima Zhong ascended the throne, he made many jokes when he was asked to make his own decision. One summer, Huidi and his entourage went to Hualin Garden to play. They walked to a pond and heard frogs cooing inside. Hui Di thought it was strange, so he asked his followers whether these things were official or private. The attendants thought the emperor's question was ridiculous, but it was hard not to answer it, so they said, "The so-called official family is the official family; If it is called privately, it is private. " Another year of famine, people have no food, and people starve to death everywhere. Someone reported the situation to Jin Huidi, but Jin Huidi told reporters: "Why don't they eat meat porridge or eat?" The speaker was dumbfounded. The victim can't even eat rice. Where can they get porridge? This shows how stupid Jin Huidi is. No wonder Sima Lun, the king of Zhao, usurped the throne in the Eight Kings Rebellion. On the night of November 17th in the year of Sima Zhongguang (306 AD), Sima Zhong, Emperor Wu of Jin Dynasty, died in Xianyang Hall of Chang 'an after eating Sima Yue's poisonous cake. At the age of 48, he was buried in Sun Mausoleum. His younger brother Jin Huaidi Sima Chi (284-3 13) ascended the throne and changed to Yuan Yong.