Which two emperors did Wu Zetian follow?

In November of the 11th year of Zhenguan (637), Wu Zetian was fourteen years old. When Emperor Taizong (Li Shimin) heard that she was beautiful in appearance and dignified in manners, he called her into the palace, made her a talented person, called her "Wu Mei", and was later mistakenly called Wu Meiniang.

In May of the first year of Yonghui (650), Tang Gaozong (Li Zhi) met Wu Zetian again when he went to Ganye Temple to make pilgrimages on the anniversary of the death of Emperor Taizong. The two men recognized each other and told each other about their thoughts after leaving.

By the way, let me tell you a joke:

It is said that Tang Zhongzong Li Xian is the most awesome emperor in history. Why is this? Because he is an emperor, his father is Tang Gaozong Emperor Li Zhi, his younger brother is Tang Ruizong Emperor Li Dan, his son is Tang Shaodi Li Chongmao, his nephew is Tang Xuanzong Emperor Li Longji, and what's more, his mother is Wu Zetian, so history has given him a glorious name: Liudi Pill. "