Xiahou Wei played a role of match making for Yang Hu, marrying his niece, Xiahou Ba's daughter to Yang. A fortune teller named Zhu Jianping (朱建平) told Xiahou Wei that he would face life-threatening situation when he turned 49, and if he endured, he would live up to 70. After Xiahou Wei turned 49, he became very ill in early December, and remembering what the fortune teller had said, Xiahou Wei believed his time had come and asked family members to prepare for the funeral. However, in late December, Xiahou Wei appeared to all right, so he ordered a huge banquet to invite guests to feast on December 30, claiming that the fortune teller was not right. However, after the feast, Xiahou Wei became very ill again and died.