Zhang Jianzhi (張柬之) (625-706), courtesy name Mengjiang (孟將), formally Prince Wenzhen of Hanyang (漢陽文貞王), was an official of the Chinese dynasty Tang Dynasty and Wu Zetian's Zhou Dynasty, serving as chancellor during the reigns of Wu Zetian and her son Emperor Zhongzong. He was a key figure in the coup that overthrew Wu Zetian and restored Emperor Zhongzong in 705, but was later exiled due to false accusations instigated by Wu Zetian's nephew Wu Sansi and died in exile.
Read more about Zhang Jianzhi: Background, During Wu Zetian's Reign, During Emperor Zhongzong's Second Reign