 In winter 564, Yuwen Hu launched a major attack on rival Northern Qi, and Yuchi Jiong had the responsibility of attacking Luoyang along with Daxi Wu (達奚武) and Emperor Wu's brother Yuwen Xian the Duke of Qi, but the attack was ultimately unsuccessful and withdrawn.In 568, Yuchi took on the even more honorific title of "Taibao" (太保) -- one of the three senior advisors to the emperor—but with unclear authorities.In 572, Emperor Wu ambushed Yuwen Hu and killed him, taking over power personally.