张柬之
In 704, as the chancellor Yao Yuanzhi was set to briefly leave Luoyang to serve as the commander of the forces in the Lingwu region, Wu Zetian also asked him to recommend a talented official. Yao responded, "Zhang Jianzhi is deep-thinking and capable of ruling on great things. He is already old. Please promote him quickly." Wu Zetian therefore gave Zhang the designation "Tong Fengge Luantai Pingzhangshi" (), making him a chancellor "de facto" at the age of 79.