Emperor Yingzong of the Ming Dynasty, Zhu Qizhen (1427-1464), was the eldest son of Emperor Xuanzong. He reigned from the year 1435 under the era name of Zhengtong.

At the time of his accession, the power of eunuchs was on the rise and Emperor Yingzong readily listened to the advice of his eunuch Wang Zhen. With actual power in the hands of Wang Zhen, the government began to decay, and Wala Mongolians from beyond the Great Wall started invading the Ming Dynasty. At the instigation of Wang Zhen, Emperor Yingzong personally led his soldiers against the Wala Mongolians but was unfortunately captured due to application of inappropriate military tactics. After that, his younger brother Zhu Qiyu (Emperor Jingzong) ascended to throne so as to calm the people. Later on, Emperor Yingzong was released by Wala Mongolians, but he was immediately imprisoned by Emperor Jingzong for eight years. Emperor Yingzong restored his authority while Emperor Jingzong was ill, and renamed his second reign Tianshun.

In 1464 AD, Emperor Yingzong died of illness and was buried in Yuling.