Battle of Guinea

Overview

The Battle of Guinea took place on the Gulf of Guinea, in West Africa, 1478, between a Portuguese fleet and a Castilian fleet in the context of the War of the Castilian Succession.

Overview adapted from Wikipedia, licensed under CC BY-SA 4.0.

Significance

The Battle of Guinea was a naval engagement fought on the Gulf of Guinea in West Africa in 1478, between Portuguese and Castilian fleets, forming part of the wider War of the Castilian Succession. That conflict, fought between 1475 and 1479, set the Portuguese-backed claim of Afonso V against the Castilian crown against the rival claim supported by Ferdinand and Isabella of Castile and Aragon. The engagement on the Gulf of Guinea reflects the extent to which the war extended beyond the Iberian Peninsula into the Atlantic and African maritime theaters, where control of West African trade routes — particularly those connected to gold and later the slave trade — was a significant prize. Portuguese and Castilian interests had been in competition along the West African coast prior to the war, and the naval clash in these waters represented a direct contest over that commercial and strategic access. The outcome of the battle is not recorded, but the broader war concluded with the 1479 Treaty of Alcáçovas, which confirmed Portuguese dominance over West African waters and trade.