São Paolo de Loanda was the largest Portuguese slave depot on the African coast. In 1641 the Dutch conquered the town of Loanda on the coast of Angola. The conquerors renamed the Portuguese fortress Aardenburgh. The WIC had already attempted to conquer Loanda in 1624, but the attack failed due to insufficient men and ships. Between 1641 and 1648 the Dutch managed the slave trade. During this period, the Loango-Angola area was governed by a governor who had his seat in São Paolo de Loanda and not from Elmina, where the WIC had its main administration for the west coast of Africa. The area turned out to be a loss rather than a gain: Between In 1641 and 1648 "only" 14,000 slaves were transported from Loanda. After 1648, the WIC no longer sailed in places further south than Congo.