High Quality Content by WIKIPEDIA articles! Qian Weidao (d. January 11, 689) was twice briefly a chancellor of the Chinese dynasty Tang Dynasty, during the first reign of Emperor Ruizong. Little is known about Qian Weidao's career before his first stint as chancellor, as, atypical for a chancellor, he did not have a biography in either the Book of Tang or the New Book of Tang. It is, however, known that his family was from Jincheng ( , in modern Lanzhou, Gansu). As of 684, he was serving as imperial censor reviewing central government affairs, when he and his subordinate, Yu Chengye, was put in charge by Emperor Ruizong's powerful mother and regent Empress Dowager Wu (later known as Wu Zetian) of investigating and interrogating the chancellor Pei Yan after accusations of treason, as Pei had angered her by suggesting that she return imperial authority to Emperor Ruizong.