Zhu Chenhao was the fifth-generation descendant of Zhu Quan, the first Prince of Ning and the seventeenth son of the
Hongwu Emperor. His father was Zhu Jinjun (; 1449–1497), who was the Prince of Ning () from 1494 until his death in 1497. Zhu Chenhao was initially granted the title of Prince of Shanggao () before becoming the Prince of Ning two years after his father's death, in 1499. , the residence of the Prince of Ning, and the roads connecting them to the imperial capitals The first Prince of Ning,
Zhu Quan, was the seventeenth son of the
Hongwu Emperor, the founder and first emperor of the Ming dynasty. He was a skilled general, stationed in the frontier town of Daning north of the
Great Wall of China. During the
Jingnan campaign (1399–1402), his elder brother, the rebel prince
Zhu Di (later the Yongle Emperor), relocated him to
Beijing due to concerns about his loyalty. Eventually, Zhu Quan was moved again to
Nanchang in the southern province of
Jiangxi, where the Princes of Ning resided for the remainder of the 15th century. During the Tianshun era (1457–1464), the prince lost the right to his guard. Zhu Chenhao was not a warrior; on the contrary, he enjoyed a life of luxury and had some literary talents. His main focus was on social advancement and he was driven by ambition. In his pursuit of military strength, he first aimed to rebuild his guard and secure the necessary funds. He achieved this in 1507 by bribing the eunuch
Liu Jin, who effectively controlled the Beijing government at the time, despite opposition from the Ministry of War. After Liu Jin's downfall in 1510, Zhu Chenhao lost his soldiers once again. In 1514, Zhu Chenhao once again requested for troops, this time with the backing of Lu Wan (1458–1526), the new Minister of War since December 1513 and a long-time political ally. His request was thwarted by Grand Secretary Fei Hong (1468–1535), who was aware of the prince's intentions. Despite this obstacle, the prince managed to gain support from
Qian Ning, the commander of the imperial guard, Zang Xian (), the
Zhengde Emperor's favorite musician, and several influential eunuchs. Finally, in April 1514, he was granted permission to proceed with his plans. Meanwhile, the local authorities had been voicing their complaints about the prince's behavior, which included seizing land, imposing taxes, and intimidating officials. In January 1514, even the Nanjing censors officially lodged a complaint to Beijing, but their efforts were in vain. In April 1514, a commissioner tasked with fighting bandits in Jiangxi reported that the root of the problem was the prince himself. He was accused of both employing bandits and driving people off their land, thus creating more bandits. Lu Wan dismissed the report as slanderous and it was disregarded. The minister even supported the prince's requests for authority over local garrisons and members of the imperial family. The Zhengde Emperor was pleased with the prince's initiative and approved his requests, while dismissing the officials' criticism as slander. As a result, the prince began to hire soldiers and bandits, and even started to act like a monarch, referring to himself as an emperor. Despite the fact that princes were typically punished severely for even minor offenses, Zhu Chenhao's behavior was overlooked. In his pursuit of power, Zhu Chenhao attempted a non-violent approach by exploiting the Emperor's lack of an heir and promoting his own son as the successor to the throne. In the spring of 1516, Zhu Chenhao resorted to bribery, persuading Qian and other influential members of the Emperor's entourage to bring his eldest son to Beijing as a potential heir, but his efforts proved to be fruitless. In May 1517, a group of eunuchs from Zhu Chenhao's household went to Beijing to report on his illegal activities. However, Qian Ning imprisoned them. The prince then focused on armed rebellion. With his support, bandits plundered the countryside and intimidated the authorities. They even attacked the household of former Grand Secretary Fei Hong, who was now living in eastern Jiangxi. Following Fei's complaint, the government sent Sun Sui () to Nanchang, where he was appointed governor and charged with suppressing violence. In 1518, Sun captured several bandits and imprisoned them in Nanchang. Fearing their statements, the prince ordered his men to attack the city and free the prisoners, causing the authorities to lose control over the countryside. In the spring of 1519, Sun wrote yet another report about the prince's betrayal and rebellion, but received no response. The prince had refrained from open rebellion thus far, hoping that the childless Emperor would appoint his son as heir to the throne. ==Rebellion==