The Dutch expedition to Valdivia was a naval expedition, commanded by Hendrik Brouwer, sent by the Dutch Republic in 1643 to establish a base of operations and a trading post on the southern coast of
Hendrik Brouwer
…out under Van Diemen's command were suggested in writing by Brouwer before he left. In 1642, the VOC joined the Dutch West India Company in organizing an expedition to Chile to establish a base for trading gold at the abandoned ruins of Valdivia. The fleet sailed from Dutch Brazil where John Maurice of Nassau provided them…
Detail from the 1646 book Journael Ende Historis Verhael van de Reyse gedaen by Oosten de Straet le Maire, naer de Custen van Chili, onder het beleyt van den heer Generael Hendrick Brouwer, Inden Jare 1643
A view of Niebla Fort, one of the many forts the Spanish established around Corral Bay following the Dutch occupation of Valdivia