The prince who endured humiliation for 36 years was Li Chen, who had been named the King of Light, and he later became the emperor of the Tang Dynasty, that is, Tang Xuanzong. After Tang Xuanzong ascended the throne, he has been working hard to govern, and he did not act as a puppet emperor like his supporters, on the contrary, he was very decisive. After he ascended to the throne, he immediately took down the then chancellor Li Deyu, and also vigorously attacked the eunuchs. In this way, it not only ended the decades-long niu-Li dispute in the Tang Dynasty, but also solved the scourge of Li Deyu. Because of the severe crackdown on eunuchs, the government had a drastic reform and reversed the political situation of the Decline of the Tang Dynasty.

Li Chen's 36 years of pretending to be crazy and stupid have not lived an ordinary life, and he has suffered a simply inhuman treatment. He was actually the thirteenth son of Tang Xianzong. Her mother, Zheng Shi, was originally a concubine of the rebel Li Qi, but later entered the palace and became The Maid of Honor of Guo Guifei. Because of his good looks, Zheng was blessed by Tang Xianzong and gave birth to a son, Li Chen.
However, because of his mother, Li Chen did not enjoy the glory and wealth of the royal family, on the contrary, he had a very unfortunate life. As the saying goes, "mother depends on the son is precious", but the Zheng family is from a humble origin, so Li Chen's mother and son can be said to be people who speak softly, so they have always been very cautious in words and deeds in the palace.
Because Li Chen knows very well what status he is, he rarely speaks, and his whereabouts are also very obscure. To outsiders, he seems to be a fool who rarely speaks, acts stupidly, and looks demented. Later, after Emperor Wuzong Li Yan ascended the throne, he tried to cut the grass and remove the roots, so he always had a suspicious attitude towards Li Chen's stupidity. Therefore, he ordered the eunuch to tie Li Chen up and throw him into the pit, but the little eunuch could not bear it, and later rescued Li Chen, who was dying, and transported him out of the palace.
Emperor Wuzong Li Yan was critically ill, but he never made a prince. At this time, the eunuch Ma Yuanzhen in the palace panicked, and he wanted to seize power in the dynasty. So he took Li Chen back, hoping that Li Chen could be a puppet emperor who obediently listened to him. But what I never expected was that Li Chen, who had been stupid for thirty-six years, was not a fool.
After Li Chen ascended to the throne, he calmly handled the affairs of the imperial court, and his speech and demeanor were very normal. This made Ma Yuanzhen dumbfounded, and he thought of "holding the Son of Heaven hostage to order the princes", but the result was to "lure the wolf into the room and throw himself into the net", and Ma Yuanzhen was soon executed. However, Li Chen did not reign for a long time, he died of poisoning because he ate the so-called "elixir", but his contribution to the country was indeed indispensable.