 The official Wei Deyu (), in order to please Emperor Yang, filed an indictment against Yang Jian.Emperor Yang sent his guards to Yang Jian's palace and searched it, seeking evidence of further wrongdoing, and they found a major scandal.Yang Jian's wife Princess Wei () had died sometime ago, and Yang Jian then carried out an affair with her sister Lady Wei () who had already married a man from the Yuan () clan.