C525
The city wall to the south of Nanjing City was a large project on flat ground. Legend said that Zhu Yuanzhang had no money and was built by Shen Wansan, who was as rich as a nation.
There were several references to Shen Wansan in "Ming Shi". One of them was clearly written in the biography of the Ma Empress: "Huzhou's Wu Xing's wealthy Shen Xiu, Shen Wansan