the period between 1595 and 1622, approximately half of all imported slaves were destined for Mexico. Most smuggled slaves were not brought by freelance traders. Angolan dominance of the trade was pronounced after 1615 when the governors of Angola, starting with Bento Banha Cardoso, allied with Imbangala mercenaries to wreak havoc on the local African powers. Many of these governors also held the contract of Angola as well as the asiento, thus insuring their interests. Shipping registers from Vera Cruz and Cartagena show that as many as 85% of the slaves arriving in Spanish ports were from Angola, brought by Portuguese ships. In 1637 the Dutch West India Company employed Portuguese merchants in the trade. The earlier asiento period came to an end in 1640 when Portugal revolted against Spain, though even then the Portuguese continued to supply Spanish colonies. Dutch, French and British competition In the 1650s after Portugal achieved its independence from Spain, Spain denied the asiento to the Portuguese, whom it considered rebels. Spain sought to enter the slave trade directly, sending ships to Angola to purchase slaves. It also toyed with the idea of a military alliance with Kongo, the powerful African kingdom north of Angola. But these ideas were abandoned and the Spanish returned to Portuguese and then Dutch interests to supply slaves. (Captain Holmes's expedition captured or destroyed all the Dutch settlements on Ghana's coast.) The Spanish awarded large contracts for the asiento to the Genovese banker Grillo in the 1660s and the Dutch West India Company in 1675 rather than Portuguese merchants in the 1670s and 1680s. However, this same period saw a resurgence of piracy. In 1700, with the death of the last Habsburg monarch, Charles II of Spain, his will named the House of Bourbon in the form of Philip V of Spain as the successor to the Spanish throne. The Bourbon family were also Kings of France and so the asiento was granted in 1702 to the French Guinea Company, for the importation of 48,000 African slaves over a decade. The Africans were transported to the French Caribbean colonies of Martinique and Saint Domingue. As part of their strategy of maintaining a balance of power in Europe, Great Britain and her allies, including the Dutch and the Portuguese, disputed the Bourbon inheritance of the Spanish throne and fought in the War of the Spanish Succession against Bourbon hegemony. Although Britain