Jacques Specx was a Dutch merchant, who founded the trade on Japan and Korea in 1609. Jacques Specx received the support of William Adams to obtain extensive trading rights from Tokugawa Ieyasu, the shōgun emeritus, on 24 August 1609, which allowed him to establish a trading factory in Hirado on 20 September 1609. He was the interim governor in Batavia between 1629 and 1632. There his daughter Saartje Specx was involved in a scandal. Back home in Holland Specx became an art-collector.
The Dutch, who, rather than "Nanban" were called "Kōmō" by the Japanese, first arrived in Japan in 1600, on board the Liefde.
In 1605, two of the Liefde's crew, Jacob Quaeckernaeck and Melchior van Santvoort, were sent to Pattani by Tokugawa Ieyasu, to invite Dutch trade to Japan. The head of the Pattani Dutch trading post, Victor Sprinckel, refused on the ground that he was too busy dealing with Portuguese opposition in Southeast Asia.