First of all, Wu Zetian was a concubine of Li Shimin. In fact, Li Shimin was not a romantic king in history or unofficial history. It's just that after the Xuanwumen Rebellion was launched, he later proclaimed himself the emperor, and once wanted to establish a younger brother, Princess Yang Wei. This is the most ridiculous thing in his life. Fortunately, he was dissuaded by Wei Zhi, his brother's former civil servant, and the matter was forgotten. Later, when he became king, when he visited Luoyang in the eleventh year of Zhenguan, he heard officials and local people say that the girl of the Wu family in Luoyang was very beautiful, and everyone praised her for her beauty. Li Shimin has reached middle age, so she was very happy to hear the news and called her to the palace. The daughter of the Wu family is what we later called Wu Ruyi. However, Wu Ruyi, who entered the palace in the eleventh year of Zhenguan, was named a gifted scholar. Li Shimin just took a fancy to her appearance, didn't spoil her too much, and didn't have any pity. It was not until Li Shimin died in the 23rd year of Zhenguan that Wu Ruyi gave birth to a son and a half, so her position in the palace was not high. In addition, another reason is that an official in the palace discovered Wu Ruyi's writing on the wall through astrology, so Li Shimin never got too close to Wu Ruyi. Later, Wu Ruyi was sent to Ganye Temple to become a nun.
Second, Wu Ruyi, as the queen of Li Zhi, is a clever woman. When Li Shimin called her into the palace, she was old enough to be her father. Li Shimin, who was born to him, is busy with state affairs. He is too old to rely on him all his life. Besides, after Li Shimin's death, she was destined to die alone in the temple. So she put her mind on Prince Li Zhi, because Li Zhi is the future king. As long as she sets foot on this ship as a backer, she can have a better ending. Wu Ruyi is four years older than Li Zhi, and her mature sister temperament charms Li Zhi fans. Through Wu Ruyi's shrewd means, Li Zhi really fell at her feet. After Li Zhi ascended the throne, Wu Ruyi was, of course, sent to a temple, became a nun, and passed the time by chanting. But at this moment, Li Zhi remembered his charm again and went to Ganye Temple under the banner of worshipping his father Li Shimin. In fact, he had a tryst with Wu Zetian. In the long run, Wu Zetian became pregnant. Therefore, Li Zhi returned to the palace with Wu Zetian, regardless of the opposition of civil and military officials. Li Zhi, who was fascinated by Wu Zetian, even wanted to abolish the queen and make Wu Zetian the queen. Finally, Wu Zetian completed a gorgeous turn.
I have to say that from the beginning, Wu Zetian was a scheming woman. Maybe the astrologer is really right. She is indeed a femme fatale, but she can't capture the love of King Li Zhi. After Li Zhi's death, she didn't just take over the country he failed to complete. Fortunately, although Wu Zetian was autocratic, she also made great efforts for the promotion of later generations.