The European trade in Africa was confined mainly to the regions of the Gold Coast and the Gambia Iver. Near the mouth of the Gambia River the subjects of the duke of Courland had bought an island from the natives in 1651. On this island they built a small fort, called St. Andre, from which they traded to several factories up the river[4]. Besides the Courlanders, the French and the Dutch carried on a very precarious trade on the river. In the early part of 1659, as a result of the war in the northern part of Europe, the duke of Courland became a prisoner of the king of Sweden. Under these circumstances the Amsterdam chamber of the Dutch West India Company[5] induced the Duke's commissioner, Henry Momber, to enter into a contract turning over to it all the duke's possessions in the Gambia River. The Dutch were to maintain the factories and to enjoy the trade until the duke was able to resume possession. The contract was of very doubtful value, since Momber himself admitted that he had no power to make it, but notwithstanding this fact he undertook to carry out its terms[6]. Shortly after the Dutch took possession of the island belonging to the duke of Courland it was surprised and plundered by a French pirate who, in return for a consideration, handed it over to a Groeningen merchant of the Dutch West India Company. The Groeningen chamber of this company was not anxious to retain the island and therefore signified to Momber its willingness to return it to Courland. Momber, who feared to have caused the displeasure of the duke by his contract, was glad to regain the island in June, 1660. Notwithstanding this fact, several ships belonging to the Amsterdam chamber of the West India Company entered the Gambia River and took possession of the island, keeping the Courlanders prisoners for a month. The natives, however, interfered in behalf of the Courlanders and the Dutch were finally compelled to retire to Cape Verde, leaving Otto Steele, the duke's commander, in possession[7].