The historical Jianwen Emperor Zhu Yunjiao's final whereabouts are unknown, but there are the following theories: Zhu Yunjiao went to Dongming Temple to become a monk, self-immolated, and became a Taoist monk.
1. Zhu Yunjiao (December 5, 1377 – ?) Born in Yingtianfu (present-day Nanjing), the grandson of Zhu Yuanzhang, the ming emperor, the second emperor of the Ming Dynasty, the era name "Jianwen". Zhu Yunjiao succeeded to the throne in 1398, during which he enhanced the role of civil officials, lenient punishment of prisons, severe punishment of eunuchs, and reform of maladministration, known in history as the "New Deal of Jianwen".
2. Zhu Di, born in Yingtian, the fourth son of Zhu Yuanzhang, the third emperor of the Ming Dynasty, was known as the "Yongle Emperor". Zhu Di was crowned King of Yan in his early years, and later seized the throne through the "Battle of Jingnan". During his reign, he improved the political system, developed the economy, opened up territory, sent Zheng He to the West, edited the Yongle Canon, dredged the Grand Canal, and created the Yongle Prosperous Era.
2. The Battle of Jingnan (also known as the Jingnan Change) was a war with Emperor Jianwen who seized power from 1399 to 1402, zhu Yunjiao began to cut the domain after succeeding to the throne, Zhu Di, dissatisfied with Zhu Yunjiao and the policy of cutting the domain, rebelled against the central government of the Ming Dynasty, the Yan army invaded Jinling, and the Battle of Jingnan ended. The Battle of Jingnan not only led to a change in the ownership of the Ming Dynasty's imperial throne, but also greatly affected the political and ideological trend of the Ming Dynasty for more than two hundred years.