Zhengtong (simplified Chinese: 正统; traditional Chinese: 正統; pinyin: Zhèngtǒng; Wade–Giles: Cheng-t'sung; lit. 'right governance'; 18 January 1436 – 13 January 1450) was the era name (nianhao) of Emperor Yingzong, the sixth emperor of the Ming dynasty, during his first reign, lasting for 14 years.
On 1 September 1449 (Zhengtong 14, 15th day of the 8th month), Emperor Yingzong was captured at the Tumu Crisis. On 6 September (6th day of the 9th month), the Jingtai Emperor ascended to the throne and continued to use the Zhengtong era name. The following year, the era was changed to Jingtai.[1][2]