 Dou treated Empress Xiao with kindness and respect while giving a proper mourning for Emperor Yang.Subsequently, the Princess Yicheng requested that Dou send Empress Xiao to her, and Dou did so, along with Emperor Yang's daughter Princess Nanyang and the head of Yuwen Huaji.An emissary was sent to welcome her and the former Empress traveled to Tujue, North of the Great Wall.