War of the Portuguese Succession

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War of the Portuguese Succession
Part of the Portuguese succession crisis of 1580
Habsburg tercios landing at the Battle of Ponta Delgada
Date 1580–1583 Location Portugal, Atlantic Ocean, and the Azores Islands Result Victory for Phillip II[1][2][3] Philip of Spain crowned King of Portugal.[2] Territorial changes The Iberian Union: Acquisition of the Kingdom of Portugal and its colonial possessions by Philip II of Spain
Belligerents
Spain Pro-Philip Portugal	Pro-Crato Portugal  France  England
Commanders and leaders
Philip II/I Duke of Alba Sancho d'Avila Álvaro de Bazán Duke of Braganza	Prior of Crato Count of Vimioso † Henry III of France Piero Strozzi † Francis Drake Francis Walsingham Charles Howard

The War of the Portuguese Succession, a result of the extinction of the Portuguese royal line after the Battle of Alcácer Quibir and the ensuing Portuguese succession crisis of 1580, was fought from 1580 to 1583 between the two main claimants to the Portuguese throne: António, Prior of Crato, proclaimed in several towns as King of Portugal, and his first cousin Philip II of Spain, who eventually succeeded in claiming the crown, reigning as Philip I of Portugal.