Fang Guozhen was born in
Huangyan district in Zhejiang. He was illiterate and his family was probably involved in
smuggling and
piracy. After killing a man who accused him of piracy, Fang created a pirate band in 1348 that operated off offshore islands. His success disturbed the Yuan government, which relied on grain shipments from the south to the capital,
Dadu. Initial Yuan attempts to defeat Fang failed and
Berke Bukha’s regime only nominally obtained his surrender after promising him multiple official titles, the Yuan government appointed him as the Duke of Qu after 1356. By 1349, Fang Guozhen had not stopped intercepting grain shipments, so
Toqto'a tried to repair the
Grand Canal to circumvent Fang. The project ultimately succeeded, but many of the workers mobilized for the effort would join the Red Turban Rebellion. By 1356, Fang permanently controlled three coastal prefectures in Zhejiang—
Qingyuan,
Taizhou, and
Wenzhou—that a 1393 census revealed to have a combined population of 2.5 million. These prefectures were governed by Fang's male relatives and, alongside his de facto control over
Ningbo and
Shaoxing, enhanced his naval supremacy; his fleet was said to be over 1000 ships strong. From 1357 onward, despite prior hostile relations Fang's fleet would help fellow rebel leader
Zhang Shicheng transport 110,000
tan of grain to Dadu until Zhang declared independence from the Yuan Dynasty in 1363. After the
Battle of Lake Poyang, Fang offered to surrender to the victorious
Zhu Yuanzhang (then the
Prince of Wu) if they first captured
Hangzhou from Zhang Shicheng. == Downfall ==