Battle of Alcácer Quibir

Sebastian, who would later be known in Portugal as the Desired, was the son of the Infante Dom John (son of John III of Portugal) and Joanna, daughter of the Emperor Charles V. His father died before he was born, and he became king at the age of three after the death of his grandfather in 1557. He was educated almost entirely by Jesuits, by his guardian and tutor Aleixo de Meneses and by Catherine of Austria, sister of Charles V and wife of King John III. Some, judging him after his defeat, alleged that under these influences his youthful idealism soon mutated into religious fanaticism, although he never joined the Holy League.

The Portuguese Cortes asked Sebastian several times to go to Morocco and stop the turmoil of the advancing Turkish military presence, because the Ottomans would be a threat to the security of the Portuguese coasts and to the commerce with Guinea, Brazil, and the Atlantic Islands, like the Azores and Madeira. But it was only when Abu Abdallah Mohammed II al-Mutawakkil went to Portugal and asked for Sebastian's help in recovering his throne from his uncle that Sebastian decided to mount a military effort. Sebastian felt driven to revive lost glories by intervening in North Africa, influenced by the events such as the defense of Mazagan in 1562 from a Moroccan siege. Accordingly, in 1568, the kingdom began to prepare for intervention in Morocco.

This policy was not only supported by the mercantile bourgeoisie as it would benefit commerce in this area (primarily, gold, cattle, wheat, and sugar), but also by the nobility. Up to that time Portuguese military action in Africa had been confined to small expeditions and raids; Portugal had built its vast maritime empire from Brazil to the East Indies by a combination of trade, sea exploration, and technological superiority, with Christian conversion of subject peoples being one, but by no means the only, end in view. Sebastian proposed to change this strategy entirely.

In 1574 Sebastian visited some of the Portuguese bases in North Africa and led a successful raid on Muslim territory beyond the then Portuguese city of Tangier, engaging in several skirmishes and in a confrontation of greater magnitude on 21 October. Although in numerical inferiority but with a heavy contingent of cavalry, he was successful, which encouraged him to grander designs against the new Saadian ruler of Morocco. He gave his support to Al-Mutawakkil, who was engaged in a civil war to recover the throne of Morocco from his uncle, the Emir Abd Al-Malik - who was aided by the Ottomans. Despite the admonitions of his mother and his uncle Philip II of Spain (who had become very cautious after the Battle of Djerba), Sebastian was determined to wage a military campaign, and he used much of Portugal's imperial wealth to equip a large fleet and gather an army which included soldiers of several nationalities: 2,000 volunteers from Spain (Castile), 3,000 mercenaries from Flanders and Germany, and 600 Italians initially recruited to aid in an invasion of Ireland under the leadership of the English adventurer, Thomas Stukley. It is said that the expeditionary force numbered 500 ships, and the army in total numbered about 18,000 men, including the flower of the Portuguese nobility.

Morocco, meanwhile, was under the rule of the Saadi (or Saadian) dynasty, a Moroccan Sharifian dynasty. Their rise to power began as a resistance to the Portuguese presence in Agadir and by the 1550s they controlled most of present-day Morocco and had supplanted the earlier Wattasid dynasty.[8] Upon the death of Sultan Abdallah al-Ghalib in 1574 his son Muhammad II al-Mutawakkil inherited the throne, but two years later he was overthrown by his uncle Abd al-Malik. Abd al-Malik had travelled to Istanbul in 1574 and secured Ottoman support from the Sultan there himself. The beylerbey of Algiers provided him with troops and with these Abd al-Malik was able to depose his nephew after winning a decisive victory near Fez. Once on the throne, as an Ottoman vassal he had the Friday prayers and the khutba in mosques delivered in the Ottoman sultan's name (Murad III), adopted Ottoman clothing, and organized his army along Ottoman lines with the help of Turkish officers.[8][9][10]^: 188 After this, the Saadi army, whose bulk was recruited from guich troops ("military tribes" mobilized to serve as regular levies[11]), combined mounted arquebusiers, infantry armed with rifles, large numbers of light cavalry, and a detachment of artillery; most of which were newly-trained in Ottoman tactics. In addition to his local guich troops and Berber contingents, many of the soldiers were recruited from Andalusis previously expelled from the Iberian Peninsula (or descended from those refugees), Berber tribes from the east such as the Zwawa, and from the Turks and ex-Ottoman soldiers in the region.[12]^{: 92–104, 153–155}[8]^{: 214–215}

Indications of the presence of an Ottoman force accompanying the Moroccans to the battlefield vary between sources. Historian Stephen Cory, in reviewing relations between the Saadians and Ottomans in this period, states that the battle was won by the Saadians "without direct Ottoman assistance."[13] Abderrahmane El Moudden, in a large study of Ottoman-Saadian diplomacy in this period, notes that some modern Turkish sources attribute the 1578 victory to Ottoman forces led by Ramazan Pasha on the field – though he also notes that some of these sources are liable to exaggerate Turkish military history.[14]

In an encyclopedic entry about King Sebastian, historian Allen Fromherz indicates the presence of Ottoman forces at the battle, including Janissaries.[15] Historian R. G. Grant states that Abd al-Malik's army was "partly supplied by the Ottoman Turks" and that it combined "Moroccan cavalry with Ottoman musket-armed infantry and cannon".[16] Professor of Islamic Studies, Jamil M. Abun-Nasr, states that the Turks "could not take over the affairs of Morocco after [the Battle of Alcácer's] victory to which they contributed much". He also mentions that Abd al-Malik's army included Turkish troops, that its officers were Turks and so was the commander of his army, who is alleged to have had Abd al-Malik poisoned in order to secure total Ottoman control over Morocco.[17]

A scene of the battle. 19th century depiciton

On 4 August 1578, the Portuguese and Moorish allied troops were drawn up in battle array, and Sebastian rode around encouraging the ranks. But the Moroccans advanced on a broad front, planning to encircle his army.

The Sultan had 10,000 cavalry on the wings, and in the center had placed Moors who had been driven out of Spain and thus bore a special grudge against Christians.[18] Despite his illness, the Sultan left his litter and led his forces on horseback.

The battle started as both sides exchanged several volleys of gunfire from musketry and artillery. Stukley, commanding the Portuguese center, was killed by a cannonball early in the battle. The Moroccan cavalry advanced and began to encircle the Portuguese army. Both armies soon became fully engaged in a melee.

The flanks of the Portuguese army began to give way to the Moorish cavalry, and eventually the center became threatened as well. Seeing the flanks compromised, and having lost its commander early in battle, the Portuguese center lost heart and was overcome.

The battle ended after nearly four hours of heavy fighting and resulted in the total defeat of the Portuguese and Abu Abdallah's army with 8,000 dead, including the slaughter of almost the whole of the Portugal's nobility. 15,000 were captured and sold into slavery, and around 100 survivors escaped to the coast. The body of King Sebastian, who led a charge into the midst of the enemy and was then cut off, was never found.[19]

The Sultan Abd Al-Malik died during the battle from natural causes (the effort of riding was too much for him), but the news was concealed from his troops until total victory had been secured. Abu Abdallah attempted to flee but was drowned in the river. Because of the deaths during the fighting of Sebastian, Abu Abdallah, and Abd Al-Malik, the battle became known in Morocco as the Battle of the Three Kings.

• The battle was the subject of the George Peele English Renaissance play, The Battle of Alcazar, and is also a central event to the anonymously written The Famous History of the Life and Death of Captain Thomas Stukeley. It is also mentioned peripherally in Thomas Heywood's 1605 play If You Know Not Me, You Know Nobody. The real story of one of the most unfortunate and latest ransomed captives, Dom João de Portugal of the Counts de Vimioso, inspired the play Frei Luís de Sousa by Almeida Garrett.
• Film The Battle of the Three Kings (1990)[23]
• Film "Non", ou A Vã Glória de Mandar (1990) by the Portuguese director Manoel de Oliveira features a representation of the battle, and others defeats from the entire military history of Portugal.
• The battle of Alcácer Quibir is represented in a Age of Empires III: definitive edition as an historical battle mission under the name "The Battle of the Three Kings". The player controls Ahmad al-Mansur as he gather the Berber tribes for war and assaults the Portuguese army. The battle in the mission has little to do with the actual events as it contains basebuilding, raiding Portuguese outposts and liberating Moroccan villages before assaulting the main army. Other differences is that Abd al-Malik falls ill before the battle and therefore he does not participate in it and Mohammed II only being described as a "Portuguese puppet sultan".
• The battle is mentioned in the story "Among the Hairy Earthmen" by R. A. Lafferty, where it is depicted as one of a series of Renaissance battles provoked by extraterrestrial juvenile delinquents inhabiting human bodies.