Yuchi Jiong
Yang then put Wei in charge of the army against Yuchi. He first defeated Yuchi's general Xue Gongli (薛公禮), who was attacking Huai Province (懷州, roughly modern Zhengzhou, Henan), and then crossed the Yellow River north. He defeated Yuchi's son Yuchi Dun (尉遲惇) near Yuchi's headquarters at Yecheng and then put Yecheng under siege. The city soon fell, and Yuchi Jiong committed suicide. Wei slaughtered the core troops that remained loyal to Yuchi to the end. Wei returned to Chang'an victoriously, and died a month later.