The Portuguese Slave Trade to Spanish Manila: 1580–1640

Abstract

Catarina de San Juan was a slave woman who was brought to the Philippines in the 1610s on her way to Mexico, where she became a beata of great renown. Her experiences in the slave markets of Cochin and Manila suggest that Portuguese traders played a key role as the primary suppliers of Asian slaves to the Philippines. This paper argues that Portuguese slavers made a significant contribution to the Manila economy by providing an important labour force that helped build and maintain the colony from 1580 to 1640, the years of Iberian Union or, from the Portuguese perspective, the “Spanish Captivity”. One-crown rule gave Portuguese traders free trade access to Manila, allowing them to meet the city's demand for this important commodity. The slave trade's volume and profits testify to its social and economic significance and suggests that the Portuguese helped sustain the Philippines, even as they faced the logistical difficulties and legal barriers evident in Catarina's story. This paper shows that the forced migration of individuals like Catarina was a notable outcome of “Spain's Asian presence”—less significant in economic terms than the transfer of silver and textiles, but no less important in human terms.