(Yuwen Shu's son) killed Emperor Yang. The coup leaders also killed many of Emperor Yang's relatives and high-level officials. However, as Yang Hao was friendly with Yuwen Huaji's brother Yuwen Zhiji (), Yuwen Zhiji persuaded Yuwen Huaji to spare Yang Hao, and subsequently, Yang Hao was declared emperor by an edict issued in the name of Emperor Yang's wife Empress Xiao, although Yuwen Huaji wielded actual powers, as regent. Reign There was no evidence that suggested that Yuwen Huaji permitted Yang Hao to actually exercise any imperial powers. Yuwen Huaji soon abandoned Jiangdu and led the remaining Sui court and the elite Xiaoguo Army () north. During the procession, Yang Hao was effectively put under house arrest at the mobile executive bureau (尚書省, Shangshu Sheng), under heavy guard. Edicts were signed by Yang Hao, but he was not even permitted to meet with the officials. Yuwen Huaji soon engaged the rebel leader Li Mi but suffered several defeats against Li and eventually forced to withdraw to Wei (魏縣, in modern Handan, Hebei). As he saw his military power waning, he became depressed. He then resolved to be emperor while he was still alive, and therefore poisoned Yang Hao, declaring himself emperor of a state of Xu. Personal information Father Yang Jun, Prince Xiao of Qin Mother Princess Cui (forced to commit suicide 597), Yang Jun's wife, sister of Cui Hongdu () References Book of Sui, vol. 45. History of Northern Dynasties, vol. 71. Zizhi Tongjian, vols. 179, 180, 185, 186. |- Sui dynasty emperors 586 births 618 deaths 7th-century Chinese monarchs Political office-holders in Henan Transition from Sui to Tang