Reputedly the flag of the Chinese pirate Shap-ng-tsai. The characters say 'T'ien Hou Sheng Mu' (Empress of Heaven, Holy mother). T'ien Hou was regarded as a calmer of storms and protectoress of marine commerce, fishermen and sailors. The flag is painted with a depiction of Zhang Daoling (34-156 AD) founder of Daoism as a religion in China. He is seated on a rock holding an Eight Trigram (a symbol of Daoism) with a tiger or qilin behind him. A border of bats runs down the fly edge (a symbol of good luck). The hoist is paced on the right hand side of flag.
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Chinese pirate flag appears in: