In 1661, the seven Mumbai islets were ceded to Britain as part of the dowry of Catherine of Bragança to King Charles II of England while Salsette remained in Portuguese hands. King Charles, in turn, leased the Mumbai islets to the British East India Company in 1668 for £10 per year. The company found the deep harbour at Mumbai eminently apposite, and the population rose from 10,000 in 1661 to 60,000 by 1675. In 1687, the East India Company transferred their headquarters there from Surat. In 1737 the island was captured by the Marathas, and most of the Portuguese northern province was ceded to the Marathas in 1739.