Afonso de Albuquerque, 1st Duke of Goa was a Portuguese general, admiral, and statesman. He served as viceroy of Portuguese India from 1509 to 1515, during which he expanded Portuguese influence across the Indian Ocean and built a reputation as a fierce and skilled military commander.
Albuquerque advanced the three-fold Portuguese grand scheme of combating Islam, spreading Christianity, and securing the trade of spices by establishing a Portuguese Asian empire. Among his achievements, Albuquerque managed to conquer Goa and was the first European of the Renaissance to raid the Persian Gulf, and he led the first voyage by a European fleet into the Red Sea. He is generally considered a highly effective military commander, and "probably the greatest naval commander of the age", given his successful strategy — he attempted to close all the Indian Ocean naval passages to the Atlantic, Red Sea, Persian Gulf, and to the Pacific, transforming it into a Portuguese mare clausum. He was appointed head of the "fleet of the Arabian and Persian sea" in 1506.