They succeeded in defeating their enemies, causing Qing's navy to begin fearing Cheung and Cai. In 1809, Wang Delu, now the Captain General of Fujian Navy, surrounded Cai Qian off the coast of Wenzhou () in Zhejiang. Lacking the strength to escape the encirclement, Cai committed suicide by shooting himself with a golden bullet. Rumours claim that Cai had a great treasure which was hidden on Matsu Islands: it had never been found to this day. References 1761 births 1809 deaths Hokkien people Qing dynasty people Chinese pirates People from Xiamen Suicides in Taiwan 19th-century pirates 18th-century Chinese businesspeople 19th-century Chinese businesspeople