 In 574, Yuwen Xian's title was changed to Prince of Qi.That year, Yuwen Xian authored a five-volume work on military strategies and offered it to Emperor Wu, and Emperor Wu was pleased with the work.In fall 574, while Emperor Wu and Yuwen Xian were at Yunyang Palace (雲陽, in modern Xianyang, Shaanxi), Yuwen Zhi took the opportunity to rebel at the capital Chang'an.