Zhoushan Island
Zheng Chenggong ("Koxinga"), who had been adopted by the Longwu Emperor in 1646 and ennobled by Yongli in 1655, also continued to defend the cause of the Southern Ming. From Xiamen, he captured Chaozhou in 1650. With his help, sea lord Zhang Mingzhen had captured Zhoushan Island and Taizhou in 1655. In 1658 he attacked the coastline of Zhejiang province and finally cut the cable protecting the Yangtze estuary in 1659.