High Level Overview of Chinese History: Han Dynasty IV
By User Refrain on zh.wikipedia - CC BY 1.0, https://commons.wikimedia.org/w/index.php?curid=804506
Deciding on Emperor Wu's heir was complicated by multiple factors. His first wife, Empress Chen Jiao, was accused of using witchcraft to have a son and was deposed in 130 BCE. In 91 BCE, Crown Prince Liu Ju was accused of witchcraft and because he thought Emperor Wu would believe the allegations, he started a 5 day rebellion in Chang'an while Emperor Wu was at Ganquan, which is near modern day Shaanxi. When the rebellion was put down, he and his mother, Empress Wei Zifu, committed suicide. Emperor Wu formed a triumvirate regency for his son, Liu Fuling, who would be known as Emperor Zhao of Han and take the throne in 87 BCE at the age of 8. One of the regents died a year later. Another was accused of supporting the King of Yan as emperor and killed, leaving Huo Guang as the remaining regent. According to the Confucian establishment, Huo did not abuse the power he had and even was popular for reducing taxes that Emperor Wu had set.
Emperor Zhao died at the age of 20 in 74 BCE without an heir in place. While his nephew was at first chosen to follow him, he was removed 'after displaying a lack of character or capacity to rule'. Emperor Zhao's wife, Empress Dowager Shangguan was the one to receive the memorial signed by the ministers to approve. Eventually, a grandchild of Emperor Wu through Crown Prince Liu Ju, Liu Bingyi, later to be named Liu Xun and remembered and Emperor Xuan of Han, was chosen to be the next emperor and took the throne at the age of 17. Huo Guang continued on as regent until he died in 68 BCE, though his clan was accused of treason in 66 BCE and were eliminated, though the reason had to do more with Huo Guang's wife poisoning Empress Xu Pingjun, Emperor Xuan's wife, in 71 BCE and then pushing Empress Huo Chengjun on him in her place. Empress Xu's son, Liu Shi, would follow his father, reigning as Emperor Yuan of Han beginning in 49 BCE. He was followed by his son, Liu Ao who would be known as Emperor Cheng of Han, in 33 BCE
There were two major political factions during this time, the Modernist Party, which were dominant under Emperor Wu and during Huo's regency, and the Reformist Party, who became more dominant afterwards. The Reformist Party favored the abolition of state monopolies as well as limiting government influence in the economy, limitation of colonization, moderate foreign policies, and a frugal budget. They also preferred focusing on granting rewards for service rather than punishing faults to show how magnanimous the dynasty was. The salt and iron monopolies were abolished in 44 BCE, though they were reinstated in 41 BCE, lasting through the 1st Century CE. They also canceled 'many of the lavish spectacles, games and entertainments installed by Emperor Wu to impress foreign dignitaries' by 66 BCE for being 'excessive and ostentatious'.
During the reigns of Yuan and Cheng, there were alleged 'signs from Heaven' that the rulers were incompetent, a total of eighteen general amnesties were granted as well as a reduction in severity of punishments for crimes and the length of judicial procedures were reduced. Under the Modernist Party, it was acceptable for those who had the means to have their punishments commuted or dropped altogether, the Reformists stopped this practice since it favored the wealthy and wasn't a deterrent for crime.
To gain a male heir, Emperor Chen made massive changes to the state-sponsored religion. Rather than worshiping the Five Powers of Wudi, as had been done since Emperor Gaozu established it as the state religion in 205 BCE, in 31 BCE, he decreed that all ceremonies should be dedicated to Shangdi, the god that the Zhou dynasty had worshiped. He was encouraged to take more concubines as he continued without an heir. In 8 BCE, he finally made his nephew, Prince Liu Xin, his heir in 8 BCE. When he died either of a stroke or an overdose of aphrodisiacs in 7 BCE, rumors began to make the rounds that he had had a son with one of his concubines, but that they were killed by Consort Zhao Hede, who also supplied Emperor Cheng with aphrodisiacs. The combination of grief and fear of reprisals had her committing suicide.
Prince Xin took the throne as Emperor Ai in 7 BCE when he was 20 years old. He had the first 'crucial historical bibliographical work' the Seven Arts (Qi Lue) compiled. He first seemed diligent about ruling and did massively reduce the national expenditure. These actions gave people hope that he would be a more effective ruler than Emperor Yuan, who seemed indecisive, and Emperor Cheng, who was impulsive, but he soon fell under the sway of Consort Fu, who had been his the consort of his grandfather, and Consort Ding. At first, Grand Empress Dowager Wang limited them to visiting once every ten days, Princess Dowager Fu was soon visiting him daily and demanded both that she be granted the title of empress dowager and that her family be granted titles. Grand Empress Dowager Wang wasn't unsympathetic to Emperor Ai's bind suggested that Princess Dowager Fu be named 'Empress Dowager Gong of Dingtao' and that Consort Ding be named 'Empress Gong of Dingtao'. Grand Empress Dowager Wang wanted her nephew Wang Mang to resign so that his position as military commander be given to the Fu and Ding clans, but Emperor Ai asked that Wang Mang stay in his position. Empress Dowager Fu would continue to scheme for more and more power, leading to infighting in the capital.
Beginning in about 4 BCE, Emperor Ai began to engage in what historians believe was a homosexual relationship with Dong Xian. This was not uncommon for the Han emperors as it was expected that men would have multiple sexual relationships. What was unusual about this relationship was how quickly Dong was granted honors, which alarmed the court and any who raised objections were severely punished. Dong and his family, including his wife and sister, who would become an imperial consort, were moved into a residence in the capital that was 'as luxurious as an imperial palace'. Dong became the commander of the armed forces in 1 BCE, when he was 22, 'effectively the most powerful official in the administration'. His family even displaced the Fus and Dings after Grand Empress Dowager Fu died in 2 BCE. When Emperor Ai died in August of 1 BCE, he named Dong Xian as his heir, but Grand Empress Dowager Wang blocked this, naming Wang Mang as regent. Dong Xian and his wife were forced to commit suicide and Emperor Ai's cousin would take the throne as Emperor Ping at the age of 8.
During this time, the Xiongnu had multiple succession issues that allowed the Han to solidify their control in the western regions and allowed them to gain more land, such as the Turpan Depression, also known as the Turfan Depression, and the creation of a new office, the chief official of the Western Regions, within the military command that watched over colonial activities and conducted diplomatic relationships with the smaller kingdoms nearby. Part of the Reformists plans for dealing with the Xiongnu was to make it more profitable for them to be on good terms with China than to fight against it by lavishing them with gifts when they made trips of homage. By 3 BCE, though, ministers were beginning to complain of the ever rising costs of pampering vassals and Xiongnu dignitaries and advocated for the return of the heqin agreement.