The Tianqi Emperor, personal name Zhu Youjiao, was the 16th emperor of the Ming dynasty, reigning from 1620 to 1627. He was the eldest son of the Taichang Emperor and a elder brother of the Chongzhen Emperor, who succeeded him. "Tianqi", the era name of his reign, means "heavenly opening".

The Taichang Emperor, personal name Zhu Changluo, was the 15th emperor of the Ming dynasty. He was the eldest son of the Wanli Emperor and succeeded his father as emperor in 1620. However, his reign came to an abrupt end less than one month after his coronation when he was found dead one morning in the palace following a bout of diarrhea. He was succeeded by his son, Zhu Youjiao, who was enthroned as the Tianqi Emperor. His era name, "Taichang", means "grand prosperity." His reign was the shortest in Ming history.