Yuwen Tai died in 556, and in spring 557, Yuwen Yong's cousin Yuwen Hu, entrusted with the governing authority by Yuwen Tai, forced Emperor Gong of Western Wei to yield the throne to Yuwen Yong's older brother Yuwen Jue, ending Western Wei and establishing Northern Zhou. Yuwen Jue took the throne as Emperor Xiaomin, but used the alternative title of "Heavenly Prince" ("Tian Wang"). Yuwen Hu served as regent, and later that year, when Emperor Xiaomin tried to seize power from him, Yuwen Hu deposed Emperor Xiaomin and then killed him, replacing him with another older brother of Yuwen Yong's, Yuwen Yu, who took the throne as Emperor Ming. Emperor Ming created Yuwen Yong the greater title of Duke of Lu and often consulted Yuwen Yong on important matters. Although Yuwen Yong did not speak much, Emperor Ming made the observation, "He did not often speak, but whatever he spoke was always right."