Sino-Dutch relations began prior to the founding of the People's Republic of China in the 17th and 18th century when Dutch traders of the Verenigde Oostindische Compagnie (VOC) setup trading post in Guangzhou and also in the western coast of Taiwan. In the Sino-Dutch conflicts Ming dynasty China defeated the Dutch East India Company in a war over the Penghu islands from 1622-1624. The Ming dynasty forces under Zheng Zhilong defeated the Dutch again at the Battle of Liaoluo Bay in 1633, and Ming loyalists under Zheng Chenggong (Koxinga) defeated the Dutch and expelled them from Taiwan in the 1662 Siege of Fort Zeelandia.