Li Zhongchen joined Zhu Ci's state of Qin in 783 and served as a chancellor for Qin, but the table of chancellors in the New Book of Tang continued to regard Li Zhongchen as a chancellor until he was captured and executed by Tang forces in 784. See New Book of Tang, vol. 62.
Han Huang was not listed in the table of chancellors, perhaps because he was still then military governor (Jiedushi) of Zhenhai Circuit (鎮海, headquartered in modern Zhenjiang, Jiangsu) and therefore arguably only an honorary chancellor, but he was listed in the table of chancellors' family trees, in the New Book of Tang. Compare New Book of Tang, vol. 62, with New Book of Tang, vol. 73.1.
