During the reign of the Rajasinha II, Dutch explorers arrived on the island. In 1638, the king signed a treaty with the Dutch East India Company to get rid of the Portuguese who ruled most of the coastal areas. The following Dutch–Portuguese War resulted in a Dutch victory, with Colombo falling into Dutch hands by 1656. The Dutch remained in the areas they had captured, thereby violating the treaty they had signed in 1638. The Burgher people, a distinct ethnic group, emerged as a result of intermingling between the Dutch and native Sri Lankans in this period.