Overview
Empress Wei (; personal name unknown; died July 21, 710) was an empress consort of the Chinese Tang dynasty. She was the second wife of Emperor Zhongzong, who reigned twice, and during his second reign, she tried to emulate the example of her mother-in-law Wu Zetian and seize power. She was de facto in charge of the governmental affairs during her husband's reign, though she was not formally regent. Emperor Zhongzong's death in 710 — a death traditionally believed to be a poisoning she carried out together with her daughter Li Guo'er the Princess Anle — made the empress dowager, and she took formal power as regent de jure during the minority of Emperor Shang of Tang. After a reign of seventeen days as regent, she was overthrown and killed in a coup led by Emperor Zhongzong's nephew Li Longji (the later Emperor Xuanzong) and Emperor Zhongzong's sister Princess Taiping.
First stint as crown princess
It is not known when Empress Wei was born. During the reign of her husband's grandfather Emperor Taizong, her grandfather Wei Hongbiao served as the military advisor to Emperor Taizong's son Li Ming the Prince of Cao. When Emperor Zhongzong, then using the name Li Zhe, was crown prince, he married her as his second wife (his first wife, Princess Zhao, was starved to death when her mother Princess Changle offended Li Zhe's mother Empress Wu (later known as Wu Zetian) and crown princess. At the time that they were married, Li Zhe's father Emperor Gaozong promoted her father Wei Xuanzhen from being the military advisor to the prefect of Pu Prefecture (, roughly modern Ziyang, Sichuan) (eighth rank, second class, second division) to be the much more important post of being prefect of Yu Prefecture (, roughly modern Zhumadian, Henan) (fourth rank, first class, second division). In 682, she gave birth to their only son, Li Chongzhao. Sometime during her stint as crown princess, she also gave birth to at least one daughter (the later Princess Changning) and possibly another (Li Xianhui, the later Princess Yongtai).
First stint as empress
Emperor Gaozong died in late 683, and Li Zhe took the throne (historically known as Emperor Zhongzong). However, actual power was in the hands of his mother Empress Wu, now empress dowager. In spring 684, Emperor Zhongzong made Crown Princess Wei the empress.
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