5th Portuguese India Armada (Albuquerque, 1503) Cape Verde, the first squadron of Afonso de Albuquerque struck out into the south Atlantic, following the South Atlantic Gyre. Along the way, Albuquerque came across Ascension Island. Although the island had already been discovered back in 1501 by the Third Armada of João da Nova (and named "ilha da Conceição" then), Albuquerque renamed it "ilha da Ascensão" on account of it being Ascension Day (May 21), the name that has since stuck. Strong south-westerly winds pushed them towards the coast of Brazil, where Albuquerque made a brief stop to take on water (exactly where is uncertain), before making his
Afonso de Albuquerque encouraged him to seize power. On 3 February 1509, Almeida fought the naval Battle of Diu against a joint fleet of Mamluks, Ottomans, the Zamorin of Calicut, and the Sultan of Gujarat, regarding it as personal revenge for the death of his son. His victory was decisive: the Ottomans and Mamluks abandoned the Indian Ocean, easing the way for Portuguese rule there for the next century. In August, after a petition from Afonso's former officers with the support of Diogo Lopes de Sequeira claiming him unfit for governance, Afonso was sent in custody to St. Angelo Fort in Cannanore. There