Murong Fuyun
Later in spring 609, Emperor Yang conducted a tour of the newly conquered Tuyuhun territory, and sent several generals to chase down Murong Fuyun. The Sui forces engaged Murong Fuyun's remaining forces, with mixed success, but Murong Fuyun was forced to flee to Dangxiang tribes. Emperor Yang tried to impose Murong Fuyun's son Murong Shun, whom Murong Fuyun had earlier sent to Sui as a hostage, as Tuyuhun's new khan, but the Tuyuhun people would not accept him, and Murong Shun was forced back to Sui territory. Emperor Yang also received 27 rulers of Xiyu kingdoms in an audience at Zhangye (張掖, in modern Zhangye, Gansu).