 As Yuchi had high reputation, Yang feared that Yuchi would oppose him, and therefore sent Yuchi's son Yuchi Dun (尉遲惇) the Duke of Wei'an to Xiang Province, summoning Yuchi back to the capital to attend Emperor Xuan's funeral and replacing him with the general Wei Xiaokuan.Yuchi, believing that Yang was intending to seize the throne, instead announced an uprising against Yang, declaring that he was intending to protect Northern Zhou's imperial lineage.He took the son of Emperor Xuan's uncle Yuwen Zhao (宇文招) the Prince of Zhao and declared him emperor.