Yang Xuangan
In 604, Emperor Wen died and was succeeded by his son Emperor Yang. Emperor Yang was impressed with Yu's talent and began to promote him, particularly after Liu Guyan (柳顧言), the head of the Palace Library, endorsed Yu, and Yu was promoted to be the deputy head of the legislative bureau. His mother soon died, however, and he left imperial service to serve a mourning period, although Emperor Yang soon recalled him to governmental service. Emperor Yang made him, along with Niu Hong (牛弘), Su Wei, Yuwen Shu, Zhang Jin (張瑾), Pei Yun (裴蘊), and Pei Ju in charge of selecting and promoting officials, and they were known as the "seven nobles of officialdom." However, it was said that the actual selective powers were in Yu's hands, and that Yu became exceedingly corrupt, making recommendations based on the amount of bribes that he received. It was further said that he was so enamored with his second wife Lady Su that he spent much of his gains in impressing and decorating her. He thus became despised by the people, particularly in comparison to his brother Yu Shinan, who was praised for his integrity. It was said that a major reason why Emperor Yang trusted Yu greatly was that Yu was good at figuring out what he intended and following it, notwithstanding any adverse impact such decisions might have on the government or the populace. He appeared to suffer no adverse consequences from his son Yu Zirou (虞子柔)'s joining the rebellion of Yang Xuangan in 613, and even Yu Zirou was not executed after Emperor Yang's forces defeated Yang Xuangan.