Western Wei
Yuwen Tai publicly deferred to Emperor Wen on most matters, but Yuwen held actual power, with Emperor Wen not being able to exercise much independent authority. Throughout the early years of his reign, there were serious doubts as to whether Western Wei would survive, as Eastern Wei was then the much stronger state, and Gao Huan made repeated attempts to conquer Western Wei. However, with Yuwen and other generals capably defending the territory, Western Wei was able to withstand Gao's assaults.