Zhang Yizhi and Zhang Changzong

Zhang Yizhi (張易之; died February 20, 705),^[1] formally the Duke of Heng (恆公), nickname Wulang (五郎) and Zhang Changzong (張昌宗; died February 20, 705),^[1] formally the Duke of Ye (鄴公), nickname Liulang (六郎), were two brothers who served as officials of Wu Zetian's Wu Zhou dynasty and became very powerful late in her reign. Both brothers were killed in a coup that overthrew Wu Zetian in 705.

^ ^a ^b Both volume 207 of Zizhi Tongjian and Wu Zetian's biography in volume 4 of New Book of Tang recorded that the Shenglong Coup took place on the guimao day of the 1st month of the 1st year of the Shenglong era of Wu Zetian's/Tang Zhongzong's reign. This date corresponds to 20 Feb 705 on the Gregorian calendar.

[coup-1] Both volume 207 of Zizhi Tongjian and Wu Zetian's biography in volume 4 of New Book of Tang recorded that the Shenglong Coup took place on the guimao day of the 1st month of the 1st year of the Shenglong era of Wu Zetian's/Tang Zhongzong's reign. This date corresponds to 20 Feb 705 on the Gregorian calendar.

[1]