Zheng-tong: Year 12, Month 8, Day 28
7 Oct 1447
Li Fen, vice minister of the right in the Ministry of War, died. Fen had his origins in Chang-zhou County, Su-zhou Prefecture...In the sixth year of the Zheng-tong reign (1441/42) he accompanied Wang Ji, the Minister of War, on expedition to Lu-chuan, and for his achievements he was promoted to vice minister of the left (Alt: right) in the Ministry of Works...
Zhong-yang Yan-jiu yuan Ming Shi-lu, volume 29, page 3067