The Conquest of the Azores, but principally involving the conquest of the island of Terceira, occurred on 2 August 1583, in the Portuguese archipelago of the Azores, between forces loyal to the claimant D. António, Prior of Crato, supported by the French and English troops, and the Spanish and Portuguese forces loyal to King Philip II of Spain, commanded by the Admiral Don Álvaro de Bazán, Marquis of Santa Cruz, during the War of the Portuguese Succession. Wikipedia