Yang Xuangan
In 613, Emperor Yang launched his second campaign against Goguryeo—and again, he himself headed for Liaodong while ordering Yuwen and Yang Yichen to head for Pyongyang. In the midst of the campaign, however, news arrived that Yang Su's son Yang Xuangan had rebelled near the eastern capital Luoyang. Emperor Yang was forced to abandon the campaign against Goguryeo, and he sent Yuwen and Qutu Tong (屈突通) ahead of himself, to reinforce the forces near Luoyang against Yang Xuangan. Yuwen, Qutu, and the generals defeated Yang Xuangan, and Yang Xuangan fled west, intending to attack Chang'an. Yuwen, Qutu, Wei Wensheng (衛文昇) and Lai Hu'er (來護兒) gave chase, catching up with Yang Xuangan at Hongnong (弘農, in modern Sanmenxia, Henan) and dealt him a final crushing blow. Yang Xuangan tried to flee further, but knowing that he could not escape, had his brother Yang Jishan (楊積善) kill him. Pursuant to Yuwen's suggestions, Emperor Yang had Yang Jishan and Yang Xuangan's strategist Wei Fusi (韋福嗣) put to death in cruel manner.