Yang Su
In winter 601, Emperor Wen commissioned Yang Su to command an army, in association with Qimin Khan Ashina Rangan (who had surrendered to Sui and whom Emperor Wen had created khan), to attack Ashina Dianjue. In spring 602, Yang Su achieved a great victory, and for his victory, Yang Xuangan's post was upgraded, and another son of Yang Su, Yang Xuanzong (楊玄縱), was created the Duke of Huainan.