Empress Lü

Lü Zhi is known for her roles in the deaths of Han Xin and Peng Yue, two of Emperor Gaozu's subjects who contributed greatly to the founding of the Han Dynasty, of whose military capabilities both she and her husband had been apprehensive .

In 196 BC, Gaozu left the capital Chang'an to suppress a revolt in Julu started by Chen Xi, the Marquis of Yangxia. A year before, Chen Xi met Han Xin before departing from Chang'an for Julu, and it was alleged that Han Xin was involved in the rebellion. Lü Zhi became wary of Han Xin, and after consulting the chancellor Xiao He, she had Xiao summon Han to meet her in Changle Palace. There, the empress had Han Xin taken by surprise, captured and subsequently executed in a torturous manner. Lü Zhi also ordered Han Xin's family and relatives to be put to death as well.

When Gaozu was putting down Chen Xi's revolt, he requested reinforcements from Peng Yue but the latter claimed that he was ill and sent his subordinates to assist Gaozu instead. After Chen Xi's rebellion was quelled, Gaozu heard rumours that Peng Yue was plotting against him too, and he had Peng arrested and stripped off his titles. Peng was demoted to the status of a commoner and exiled to the remote Qingyi County (青衣縣; in present-day Ya'an, Sichuan). During his journey to Qingyi, Peng Yue encountered Lü Zhi, who wanted to have him killed. He pleaded with her to spare his life and let him return to his hometown in Changyi (昌邑; present-day Jinxiang County, Shandong), and the empress pretended to agree. Peng Yue was brought to Luoyang, where he was subsequently executed on false charges of treason. Lü Zhi ordered Peng Yue's body to be mutilated and had Peng's clan exterminated as well.

In his late years, Emperor Gaozu started favouring one of his younger consorts, Concubine Qi, who bore him a son Liu Ruyi, who was instated as Prince of Zhao in 198 BC, displacing Lü Zhi's son-in-law Zhang Ao (Princess Yuan of Lu's husband). Gaozu had the intention of replacing Liu Ying with Liu Ruyi as crown prince, reasoning that the former was too "soft-hearted and weak" and that the latter resembled him more. Since Lü Zhi had strong rapport with many ministers, they generally opposed Gaozu's decision but the emperor seemed bent on deposing Liu Ying. Lü Zhi became worried and she approached Zhang Liang for help, and the latter analysed that Gaozu was changing the succession on grounds of favouritism. Zhang Liang invited the "Four Whiteheads of Mount Shang", a group of four reclusive wise men, to persuade Gaozu to change his decision. The four men promised to assist Liu Ying in future if he became emperor, and Gaozu was pleased to see that Liu Ying had their support. Gaozu told Concubine Qi, "I wanted to replace (the crown prince). Now I see that he has the support of those four men; he is fully fledged and difficult to unseat. Empress Lü is really in charge!"[2] This marked the end of the dispute over the succession and affirmed Liu Ying's role as crown prince.

Lü Zhi did not harm most of Gaozu's other consorts and treated them according to rules and customs of the imperial family. For example, consorts who bore male children that were instated as princes were granted the title of "Princess Dowager" (王太后) in their respective sons' principalities. One exception was Concubine Qi, whom Lü Zhi greatly resented because of the dispute over the succession between Liu Ruyi (Qi's son) and Liu Ying. Liu Ruyi, the Prince of Zhao, was away in his principality, so Lü Zhi targeted Concubine Qi. She had Qi stripped of her position, treated like a convict (head shaved, in stocks, dressed in prison garb) and forced to do hard labour in the form of milling rice.

Lü Zhi then summoned Liu Ruyi, who was around the age of 12 then, to Chang'an, intending to kill him together with his mother. However Zhou Chang (周昌), the chancellor in Liu Ruyi's principality, whom Lü Zhi respected because of his stern opposition to Emperor Gaozu's proposal to make Liu Ruyi crown prince, temporarily protected Liu Ruyi from harm by responding to Lü Zhi's order that "The Prince of Zhao is ill and unfit for travelling over long distances." Lü Zhi then ordered Zhou Chang to come to the capital, had him detained, and then summoned Liu Ruyi again. Emperor Hui tried to save Liu Ruyi by intercepting his half brother before the latter entered Chang'an, and kept Liu Ruyi by his side most of the time. Lü Zhi refrained from carrying out her plans for several months because she feared that she might harm Emperor Hui as well.

One morning in the winter of 194 BC, Emperor Hui went for a hunting trip and did not bring Liu Ruyi with him because the latter refused to get out of bed. Lü Zhi's chance arrived, so she sent an assassin to force poisoned wine down Liu Ruyi's throat. The young prince was dead by the time Emperor Hui returned. Lü Zhi then had Concubine Qi killed in an inhumane manner: she had Qi's limbs chopped off, eyes gouged out, ears sliced off, forced her to drink a potion that made her mute, and thrown into a latrine. She called Qi a "human swine" (人彘). Several days later, Emperor Hui was taken to view the "human swine" and was shocked to learn that it was Concubine Qi. He cried loudly and became ill for a long time. He requested to see his mother and said, "This is something done not by a human. As the empress dowager's son, I'll never be able to rule the empire."[3] From then onward Emperor Hui indulged himself in carnal pleasures and ignored state affairs.

Around the winter of 194 BC, Liu Fei, the Prince of Qi, Emperor Gaozu's eldest son born to Lady Cao (曹氏), visited Chang'an and he and Emperor Hui attended a banquet hosted by the empress dowager. Emperor Hui honoured Liu Fei as an older half brother and treated the latter respectfully. Lü Zhi felt offended and secretly instructed her servants to pour a cup of poisoned wine for Liu Fei, and then toasted him. Just as Liu Fei was about to drink the wine, Emperor Hui realised his mother's intention and grabbed Liu Fei's cup as if he would drink from it. Lü Zhi immediately jumped up and knocked the cup out of Emperor Hui's hand. Liu Fei then offered to give up an entire commandery from his principality to Lü Zhi's daughter Princess Yuan of Lu, and Lü Zhi accepted and allowed him to leave.

Lü Zhi also played a role in the death of another of Gaozu's sons, Liu You, the Prince of Zhao. Liu You married Lü Zhi's niece but was caught having an affair with another woman, so Lü Zhi's niece reported to her aunt that Liu You was plotting a rebellion.[4] Lü Zhi summoned Liu You to Chang'an and had him imprisoned and deprived of food. Liu You was afraid of committing suicide and eventually starved to death, in 181 BC.

Lü Zhi then transferred another of Gaozu's sons, Liu Hui, the Prince of Liang, to Zhao, and forced him to marry a daughter of Lü Chan. The Lü clan grabbed the authority of Zhao and oversaw Liu Hui, thus making Liu Hui feel restricted. Princess Lü had a favored concubine of Liu Hui poisoned to death. Liu Hui was distressed and committed suicide in fear in the same year.

For the matters above Lü Zhi was criticized for "having murdered three princes of Zhao".

In 192 BC Lü Zhi received a marriage proposal from the Xiongnu chanyu Modu, who wrote as follows in a letter meant to intimidate and mock her:

I'm a lonesome ruler born in marshes and raised in plains populated by livestock. I've visited your border numerous times and wanted to tour China. Your Majesty is now alone and living in solitude. Since both of us are not happy and have nothing to entertain ourselves, I'm willing to use what I possess to exchange for what you lack.[5]

Lü Zhi was infuriated at the rude proposition, and in a heated court session, her generals advised her to rally an army and exterminate the Xiongnu immediately. As she was about to declare war, an outspoken attendant named Ji Bu pointed out that the Xiongnu army was much more powerful than the Chinese. At Ji Bu's words, the court immediately fell into a fearful silence.[6] Rethinking her plans, Lü Zhi rejected Modu's proposition humbly, as follows:

Your Lordship does not forget our land and writes a letter to us, we fear. I retreat to preserve myself. I'm old and frail, I'm losing hair and teeth, and I struggle to maintain balance when I move. Your Lordship has heard wrongly, you shouldn't defile yourself. Our people did not offend you, and should be pardoned. We've two imperial carriages and eight fine steeds, which we graciously offer to Your Lordship.[7]

However she continued implementing the heqin policy of marrying Han princesses to Xiongnu chieftains and paying tribute to the Xiongnu in exchange for peace between both sides.[8]

In 191 BC, at Lü Zhi's insistence, Emperor Hui married his niece Zhang Yan (Princess Yuan of Lu's daughter) and made her empress. They did not have any children. It was alleged that Lü Zhi told Zhang Yan to adopt eight boys and have their mothers killed. There is uncertainty whether these children were Emperor Hui's; the traditional view is that they were not, while modern historians believe that they were born to his concubines.

• Sima Qian. Records of the Grand Historian, vols. 8, 9, 49.
• Ban Gu et al. Book of Han, vols. 1, 2, 3, 97, Part 1.
• Fan Ye. Book of the Later Han.
• Sima Guang. Zizhi Tongjian, vols. 7, 9, 10, 12, 13.
• Yap, Joseph P. War With The Xiongnu - A Translation From Zizhi tongjian. Chapter 2. AuthorHouse. 2009. ISBN 978-1-4490-0605-1.
• Bennet Peterson, Barbara (2000). Notable Women of China: Shang Dynasty to the Early Twentieth Century. M.E. Sharpe, Inc.