Castilian and Portuguese merchants in collaboration (1580-1590). Has the Hispanic Monarchy favored Iberian commercial partnerships?

The Iberian Union allowed the existence of formal mechanisms of government authority in Portugal. In what concerns the Iberian trade dynamics, including the colonial circuits, the Habsburgs legislated according to those that would be the most politically convenient circumstances, making an impact on Iberian affairs. Over the last decade, historical literature has highlighted the transnational nature of Early Modern business partnerships. On the other hand, Iberian scholars have put forward many case studies that show formal or informal Portuguese participations in the Spanish Indies affairs. However, the inverse situation as not been considered yet. What was the role played by Castilian merchants in the Portuguese colonial trade? This paper aims to present data about the collaboration between Portuguese and Castilian merchants within the European and the overseas trade dynamics, approaching the Iberian Union as an event that favored these business partnerships. It also debates the formal or informal nature of these relationships. Were they promoted by the State’s policies or, alternatively, were they devised as a means to bypass the Crown’s monopolistic policies? For this propose, we will analyze Portuguese notarial records from the period between 1580 and 1590.

Trans-national cooperation: an asset in the Portuguese overseas trade. Foreigners operating in the Portuguese overseas trade, 1580-1590

This paper aims to discuss the role of foreign merchants, operating from Portugal, in the Portuguese overseas trade, during the first ten years of Iberian Union. The focus is not in products or routes, but in the mechanisms of association of such merchants. Iberian Union created a legal framework which prohibited the interference and trade of Portuguese agents in the Spanish Empire and vice-versa. Due to the imperialist wars of the Habsburgs, the Portuguese Empire also suffered from Dutch and English rivalry both in the Indic and in the Atlantic and also from the embargos of Dutch and English products and ships in Iberian ports. In such conjuncture, how did merchants related with each other? What was the impact of the political union of the Portuguese and Spanish crowns in trading associations? The used data sources are the notarial contracts of Lisbon for the same period. The paper highlights the role of Castilian merchants in the Portuguese trade, but it also stresses that Iberian partnerships have prevailed before 1580. The role of other merchants, such as Flemish/Dutch, Germans, Italians and French, is also considered. The paper discusses how and why did these merchants join in trans-national partnerships and what was their role in the Portuguese trade network at the time.