size of Chen's army, he won battle after battle, and in spring 529, after Chen captured Suiyang (睢陽, in modern Shangqiu, Henan), Yuan Hao, with Emperor Wu's approval, proclaimed himself the emperor of Northern Wei. In summer 529, with Northern Wei troops unable to stand up to Chen, Emperor Xiaozhuang of Northern Wei fled the Northern Wei capital Luoyang, and Yuan Hao took it. However, Yuan Hao secretly wanted to rebel against Liang, and when Chen requested Emperor Wu to send reinforcements, Yuan Hao sent Emperor Wu a submission advising against it, and Emperor Wu, believing Yuan Hao, did not send additional troops. Soon, Erzhu Rong and Emperor Xiaozhuang counterattacked, and Luoyang fell. Yuan Hao fled and was killed in flight, and Chen's own army was destroyed, although Chen himself was able to flee back to Liang. Emperor Wu, realizing the impossibility of the task he gave Chen, nevertheless created Chen the Marquess of Yongxing in recognition of his victories. In fall 529, Emperor Wu made his second offering of himself to the service of Buddha at Tongtai Monastery—but contrary to the first time he did, when he simply spent three days at the monastery, he stripped himself of imperial clothing and wore those of monks, and spent all day carrying out monastic tasks, including daily chores and giving of lectures on the Nirvana Sutra. He spent 12 days at the monastery, and returned to the palace only after the imperial offices made a huge donation to it—formally, to ransom "the Emperor Bodhisattva." In 530, Emperor Wu made another attempt to establish a vassal regime in Northern Wei—by creating Yuan Yue the Prince of Wei, and commissioning Yuan Yue's uncle Fan Zun (范遵) with an army to escort Yuan Yue back to Northern Wei. Yuan Yue made some advances, particularly in light of the disturbance precipitated soon thereafter when Emperor Xiaozhuang ambushed and killed Erzhu Rong and was in turn overthrown by Erzhu Rong's nephew Erzhu Zhao and cousin Erzhu Shilong. However, Yuan Yue realized that the Erzhus then became firmly in control of Luoyang and that he would be unable to defeat them, and so returned to Liang in winter 530. Xiao Tong's Death In 531, Xiao Tong who was the Crown Prince at the time died, and Emperor Wu personally attended his wake and buried him in a tomb appropriate for an emperor. He also summoned Xiao Tong's