sentences:  The office recurred as variations of the pre-formalization titles, even after formalization of the chancellors de facto offices of the first and second grades, but did not regularly recur after 713.Liu Youqiu, who held the title as "Zhi Junguo Zhongshi", was the last person to hold any variation of the title as chancellor as a regular title, although Pei Du would hold the title of "Pingzhang Junguo Zhongshi" (平章軍國重事) briefly in 830.Toward the end of the dynasty, Li Zhirou was briefly put temporarily in charge of the Office of the Chancellors in 895 with the designation "Quanzhi Zhongshu Shi" (權知中書事) and therefore could be regarded as a chancellor as well (and was listed in the table of chancellors in the "New Book of Tang"); similarly, Lu Guangqi went through two similar titles.