Emperor Chongzhen of Ming Dynasty Zhu Youjian (1611-1644 AD), was the last emperor of the Ming Dynasty. It shows that the dynasty was ruined by him, but he was actually wronged. He took over from Ming Xizong Zhu Youxiao (Carpenter Emperor) is a mess, a riddled Ming Dynasty.

Zhu Youxiao ignored state affairs and was obsessed with carpentry work. Inside, there are Wei Zhongxian and Keshi, and outside, there are a bunch of Donglin Party all day long, which is a drawback in government affairs. These are not enough to destroy the Ming Dynasty, but natural disasters are the destruction of the Ming Dynasty.
Chongzhen fifth year (1632), the first great famine occurred;
Chongzhen 8th year (1635), locust began to appear in large numbers.
In the tenth year of Chongzhen (1637), a large-scale drought that lasted for seven years began.
What followed the disaster was the plague, which was mainly smallpox and epidemics back then.
Northwest region is particularly serious. During the Chongzhen period, the first large-scale epidemic in Shanxi Province occurred in the sixth year of Chongzhen (1633). It was spread to Shaanxi and southern Mongolia three years later. In the 13th year of Chongzhen (1640), the entire Shaanxi Province was infected.

As the epidemic spread, a severe rat disaster occurred again, eating up all the food in the fields.
It can be said that Emperor Chongzhen encountered a natural disaster that had not happened in 400 years since Yuan Dynasty . No emperor has ever been so unlucky. In fact, Chongzhen is really not a foolish monarch. He is the most diligent emperor in the history of the Ming Dynasty except for Zhu Yuanzhang. He saves money and does not have any rest day or work hard day and night. If such a person is a fool, he will be wronged.