Murong De, once he settled in at Guanggu, sent out multiple missions to try to find the fate of his mother Consort Gongsun and his brother Murong Na. In 401, he sent his official Du Hong (杜弘), compensating Du by making his father Du Xiong (杜雄) a county magistrate, but after Du Hong arrived in Zhangye, before finding out more, he was killed by bandits. In 403, however, after his former subordinate Zhao Rong (趙融) arrived from Later Qin territory, Zhao told him that Consort Gongsun and Murong Na were both deceased, and Murong De mourned them so greatly that he became ill—and from that point on, his health became precarious.