魏元忠
In 702, Wu Zetian put Li Dan in command of an army and made the prefect of Bing Prefecture (并州, roughly modern Taiyuan, Shanxi), with Wu Sansi, Wu Youning, and Wei Yuanzhong as his assistants, apparently preparing to attack Eastern Tujue, but the army was never launched. Later that year, she had Li Xian, Li Dan, and Princess Taiping submit formal petitions to have Zhang Changzong created a prince. She then formally rejected the petitions, but created Zhang Changzong and Zhang Yizhi dukes.