Too old, too much turmoil, all ruined.
First, after the Ming Dynasty moved its capital, the Nanjing Forbidden City was poorly maintained.
Second, it suffered from natural disasters such as lightning, rainstorm and flood.
Third, military disasters, the Qing uprising, the Taiping Heavenly Kingdom, Japan's invasion of China and so on.
So at that time, Zhu Yuanzhang's Forbidden City disappeared, and now the Nanjing Forbidden City ... Specifically, the Forbidden City in Beijing was basically rebuilt, not the earliest palace in the Ming Dynasty.
Extended data:
In the twenty-fourth year of Hongwu (139 1), Zhu Yuanzhang sent Prince Zhu Biao to inspect Guanzhong and prepared to move the capital to Xi 'an. Prince Zhu Biao inspected Xi and Luoyang in detail, compared the topography of the two places, and presented a map of Shaanxi after Zhu Yuanzhang returned to China.
Zhu Biao fell ill shortly after returning to Beijing after his inspection in the Qin Dynasty, and wrote to Mao about preparing for the capital. However, things are unpredictable, and the next year, Prince Zhu Biao died.
Prince Zhu Biao died in the prime of life, and white-haired people sent black-haired people. Zhu Yuanzhang, who was nearly seventy years old, was hit hard and no longer had the energy and mood to consider moving the capital. At the end of that year, he personally wrote an article "Sacrificing a Kitchen", expressing his helplessness: "I have been running the world for decades, and everything is prepared according to the ancient times. However, the situation in Miyagi Prefecture is not equal. I wanted to move the capital, but now I am old and tired, and the world is at the beginning of peace, and I don't want to work for the people. There are several reasons for prosperity and waste, so we have to leave it to fate. I only want to learn from this heart and bless my children. " Sad resignation sounds really bleak. This makes people feel that even an emperor like Zhu Yuanzhang, who is vicious and tough in style, has something beyond his power.
The capital incident became the biggest regret of Zhu Yuanzhang's life, and it was not properly resolved until his death.
Baidu Encyclopedia-Zhu Yuanzhang