How did Emperor Taizong die in history?

Li Shimin, Emperor Taizong, became king at the age of 28 and reigned for 23 years. He accepted the lessons of the demise of the Sui Dynasty, worked hard to recuperate with the people, gradually stabilized the society, and made the country stronger than ever before, creating a famous period of "Zhenguan rule" in history. ? However, after more than ten years as emperor, he became accustomed to a comfortable and enjoyable life and gradually became extravagant and corrupt. He restored the luxurious palace built by Yang Di in Luoyang. He once occupied the daughter-in-law of Li Yuanji, the king of Qi, and chose the 14-year-old daughter of the late minister Yong Yong as a talent, and named her Mei, that is. In his "old age", that is, the last few years when he became emperor, he was uncharacteristically superstitious about divination and obsessed with Dan medicine, and died young at the age of 52. ? In the twenty-second year of Zhenguan, the white star in the sky appeared many times during the day. This was originally a natural phenomenon of celestial movement in the universe, but it should be "the prosperity of mistress." Li Shimin also heard that the secret book circulated by the people said, "After Tang III, the mistress won the world." This can make him unable to sleep. How could his Li Dynasty be replaced by "King Wu"? Therefore, he will try his best to find this "King of Wu" and strangle him in the cradle. There was a Zuo Wuwei general named Li Junxian. Wulian county is just unlucky again. His official title, title, native place and position successively occupied the word "Wu": one was in "General Zuo Wuwei" and the other was in "Wulian County Duke". He is also a native of Wu 'an County and the garrison commander of Xuanwu Gate in the north gate of Miyagi. Tai Shigong's divination should happen to be on him, which is a coincidence. It happened that his parents gave him a little girl's name when he was a child, called "Wu Niang", hoping that he would be easy to raise. And the homonym of "five" in "Martial Arts" is precisely implicated in the jealousy of the female host. Li Shimin superstitious divination, simply lost his mind, high-handed, first demoted Li Junxian to Huazhou (now Huaxian County, Shaanxi Province) as an assassin, but later worried, an excuse to kill him. Li Junxian didn't know what he had committed until he died, and he became the victim of Li Shimin's superstition. ? In the twenty-first year of Zhenguan, Li Shimin suffered a stroke and was paralyzed in bed. After the doctor's diagnosis and treatment, he recovered slightly after half a year, and he can go to court once every three days. If you continue to treat and feed, you may gradually recover. However, at this time, he fell in love with the alchemy of the alchemist and hoped that he would live forever. He first took the Dan medicine refined by the local alchemist, but it didn't work. He thought that domestic alchemists were shallow in Taoism, so he sent people to visit foreign experts everywhere. ? In the twenty-second year of Zhenguan, Minister Wang Xuance captured an Indian monk named Rona Erwa in the foreign war. In order to cater to Li Shimin's desire for longevity, I dedicated him to Li Shimin. Indian monks boast that they are 200 years old and specialize in immortality. They swear that they will become immortals after eating the elixir he refined, and they can even fly to the Heavenly Palace to become immortals in broad daylight. ? His nonsense really touched Li Shimin, so he arranged for Indian monks to stay in a luxurious inn. Every meal is delicious, and a large group of servants serve him every day, and life is no less than that of the emperor. When this guy saw that Li Shimin believed in himself, he solemnly prescribed a series of medicines with strange names. Li Shimin ordered the world to collect different kinds of drugs according to his situation. At any cost, at any sacrifice, as long as he can get the medicine from the prescription of Indian monks, even if it is a knife and a mountain of fire. A year later, when the medicine was ready, Li Shimin was very happy and ate all the medicine without hesitation. As a result, he died of bleeding and poisoning. At this time, he was only 52 years old, and he was the first emperor in the history of China to be poisoned by the "elixir of life". He didn't care to the end, so he died prematurely in a ridiculous, sad and stupid way. In order to live forever, an alchemist was poisoned by himself