In 547, the
Eastern Wei general
Hou Jing, not willing to submit to
Gao Cheng, the son of the paramount general
Gao Huan after Gao Huan's death, surrendered his domain—13 provinces forming the region between the
Huai River and the
Yellow River—to Liang. Emperor Wu initially hesitated at accepting Hou's defection, given his long-standing peace with Eastern Wei, but Zhu, seeing how deep in his heart Emperor Wu wanted more territory, greatly encouraged him to accept Hou. However, both Hou and the army Emperor Wu sent to support Hou, commanded by Emperor Wu's nephew
Xiao Yuanming the Marquess of Zhenyang, were defeated by the Eastern Wei general
Murong Shaozong. Xiao Yuanming was captured by Murong, while Hou lost his entire territory. Emperor Wu made Hou the governor of Southern Yu Province (南豫州, modern central
Anhui), but at Zhu's suggestion, entered into peace talks with Eastern Wei. Hou became apprehensive, and he paid a large
bribe to Zhu to ask Zhu to stop the peace talks. Zhu, who was the dominant statesmen at Emperor Wu's court, accepted Hou's bribes but refused to intercede. At the same time, not taking Hou seriously, Zhu rejected warnings from Emperor Wu's nephew Xiao Fan (蕭範) the Prince of Poyang to prepare for a Hou rebellion. He dismissed Fan while saying "Jing has with him but a few hundred rebellious caitiffs. What can they do?" Soon, Hou was suspicious that he would be betrayed, and he forged a letter from Gao Cheng, offering to trade Xiao Yuanming for Hou. Emperor Wu, after Zhu convinced him that Hou posed no actual threat, accepted—and when Hou saw this, he rebelled in 548, claiming that he was seeking to clear the court of evil officials—Zhu, along with Xu Lin (徐麟), Lu Yan (陸驗), and Zhou Shizhen (周石珍). Even then, Zhu did not take Hou seriously, and when the general
Yang Kan suggested blocking Hou's path to the
Yangtze River, Zhu advised against it, and Emperor Wu did not do so, allowing Hou to cross the Yangtze easily and put the capital
Jiankang under siege. During the siege, Hou again repeatedly stated that he was only seeking to execute Zhu. When Emperor Wu asked his
crown prince Xiao Gang whether the crimes that Hou accused Zhu of were true, Xiao Gang indicated that they were true—but subsequently spoke against Emperor Wu's thought of executing Zhu, arguing that doing so would only encourage Hou. Zhu was therefore spared, and subsequently participated in the city's defense, and he wrote letters to Hou trying to persuade Hou to lift the siege, to no avail. When Hou's general Fan Taobang (范桃棒) subsequently offered to defect and kill Hou, Zhu greatly advocated for the plan, but Xiao Gang suspected Fan's intentions and therefore did not act on the offer. The people of the capital all believed that Hou's rebellion was stoked by Zhu's corruption. Zhu, in embarrassment and fear, became ill. He died in 549, with the city still under siege. Emperor Wu, still believing in his faithfulness, buried him with honor. The author of
Book of Liang,
Yao Silian, when summarizing Zhu Yi's life, attributed his political successes in Emperor Wu's court to his craftiness. == In literature ==