Historically, Lü Yan was the wife of Liu Bang, the founding emperor of the Han Dynasty, and was also the first empress in China's history. When Liu Bang was still a small, Lü Yan, as a showman for everyone, was married by his father to Liu Bang, who was already forty years old and still idle every day.
After marrying Liu Bang, Lü Yan also had no half regrets, and Liu Bang was not really a thing in the pool, and then in the later uprising, Liu Bang rose up, and eventually became the King of Han, and later became the founding emperor of the Han Dynasty.
However, at this time, due to the change of liu bang's identity, people slowly began to drift, so he married another wife, she was Lady Qi. Lü Hou did not say much about this, but Lady Qi thought that Lü Hou was a bully, so she had to go inside, and even lobbied in Liu Bang's ear, provoking the relationship between Liu Bang and Lü Hou, and guiding Liu Bang to abolish Lü Hou's son's position as crown prince and make her own son the prince.
This also completely angered Lü Hou, and after he received the support of many ministers around Liu Bang, he caused trouble in the Daya Hall. From then on, Liu Bang did not dare not give Lü Houzi, and Lady Qi's plan failed in desperation.
After Liu Bang's death, Lady Qi did not restrain in the slightest, and also bluntly said that after that, her son would avenge himself, which was simply a clear provocation to Empress Lü. In the end, Lady Qi was made a human by the angry Lü Hou, and her son Liu Ruyi the Prince of Zhao was also killed by Lü Hou's poisoned wine.