The Dutch East India Company (VOC) came to the area in search of an Asian trade and military base. Defeated by the Portuguese at the Battle of Macau in 1622, they attempted to occupy Penghu, but were driven off by the Ming authorities. They then built Fort Zeelandia on the islet of Tayowan off the southwest coast of Taiwan. (The site is now part of the main island, in modern Anping, Tainan.) On the adjacent mainland, they built a smaller brick fort, Fort Provintia. Local aboriginals called the area Pakan and on some old maps the island of Taiwan is named Pakan.