Li Daozong
Later Liang Luoren (梁洛仁), the brother of Liang Shidu attacked with assistance from Eastern Tujue to Ling prefecture. However Li Daozong (a cousin of Taizong) was able to repel him, and further expel the khagan's nephew Ashina Yushe (阿史那郁射) from the Wuyuan (五原, in modern Yulin, Shaanxi).