Yuwen Tai
In 554, Emperor Fei, angry that Yuwen Tai had put the official Yuan Lie (元烈) to death in 553, secretly plotted to kill Yuwen Tai. The plot was discovered, and Yuwen Tai deposed him, and soon had him killed. According to the "History of Northern Dynasties", Empress Yuwen "also suffered death because she was faithful to Wei's imperial house," but did not give greater elaboration as to how or why she died, nor is it completely clear that she died in the same year her husband did.