 Yang, suspicious that the general Yuchi Jiong (Yuchi Chifan's grandfather), in charge of Xiang Province (相州, roughly modern Handan, Hebei) and the surrounding regions, tried to replace Yuchi with Wei.Yuchi, however, was suspicious that Yang was intending to usurp the throne, decided to rise against Yang.When Wei approached Xiang Province, he realized this, and he pretended to be ill, and instead tried to flee to Luoyang—on the way, leaving instruction to each post to give feasts to Yuchi's soldiers if they gave chase.