The Info List - Treaty Of Alcáçovas

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The Treaty of Alcáçovas
Treaty of Alcáçovas
(also known as Treaty or Peace of Alcáçovas-Toledo) was signed on 4 September 1479 between the Catholic Monarchs
Catholic Monarchs
of Castile and Aragon on one side and Afonso V and his son, Prince John of Portugal, on the other side. It put an end to the War of the Castilian Succession, which ended with a victory of the Catholic Monarchs
Catholic Monarchs
on land[1] and a Portuguese victory on the sea.[2] [1] The four peace treaties signed at Alcáçovas reflected that outcome: Isabella was recognized as Queen of Castile while Portugal reached hegemony in the Atlantic Ocean. The treaty intended to regulate:

The renunciation of Afonso V and Catholic Monarchs
Catholic Monarchs
to the Castilian throne and Portuguese throne, respectively The division of the Atlantic Ocean
Atlantic Ocean
and overseas territories into two zones of influence The destiny of Juana de Trastámara The contract of marriage between Isabella, the eldest daughter of the Catholic Monarchs, with Afonso, heir of Prince John. This was known as Tercerias de Moura, and included the payment to Portugal of a war compensation by the Catholic Monarchs
Catholic Monarchs
in the form of marriage dowry.[3] The pardon of the Castilian supporters of Juana


1 War of the Castilian Succession 2 Main clauses 3 Possessions 4 Long term implications 5 See also 6 References 7 Bibliography 8 External links

War of the Castilian Succession[edit]

Ferdinand and Isabella

See also: Battle of Toro, Battle of Guinea, and War of the Castilian Succession After Henry’s IV death in 1474, the Castilian crown was disputed between the half-sister of the king, Isabella I of Castile, married to Prince Ferdinand II of Aragon, and the king’s daughter, Juana de Trastámara, popularly known as la Beltraneja – because her father was alleged to be Beltrán de la Cueva. In the subsequent civil war, Afonso V of Portugal
Afonso V of Portugal
married Juana and invaded Castile (May 1475), defending her rights.[4] Parallel to the dynastic struggle, there was a fierce naval war between the fleets of Portugal and Castile to access and control overseas territories − especially Guinea – whose gold and slaves were the heart of the Portuguese power. The main events of this war were the indecisive[5][6] battle of Toro (1 March 1476), transformed[7] in a strategic victory by the Catholic Monarchs
Catholic Monarchs
and the battle of Guinea[8] (1478), which granted Portugal the hegemony in the Atlantic Ocean
Atlantic Ocean
and disputed territories. Historian Stephen R. Bown: “(...) When Ferdinand an Isabella secured their rule after the Battle of Toro
Battle of Toro
on 1 March 1476- effectively eliminating the threat of Portuguese invasion but not officially ending the war- they renewed the twenty-year-old Castilian claim to their "ancient and exclusive" rights to the Canary Islands
Canary Islands
and the Guinea coast (...). They encouraged Spanish merchant ships to take advantage of the political disruption and considered making direct attacks on Portuguese vessels returning from Guinea, with the objective of seizing the monopoly. (...) In 1478 a Spanish fleet of thirty-five caravels was intercepted by an armed Portuguese squadron. Most of the fleet was captured and taken to Lisbon [with a huge amount of Gold
plus all the garrison, arms and tripulation]. (...) in 1479, (...) the two nations concluded terms for peace with the treaty of Alcáçovas, ending the struggle for the succession as well as their battle at sea.”[9] Main clauses[edit]

Juana de Trastamara and Afonso V waived their rights to the Castilian throne in favour of the Catholic Monarchs, who gave up their claims over the throne of Portugal. There was a sharing of the Atlantic territories between both countries and a delimitation of the respective spheres of influence. With the exception of the Canary Islands, all territories and shores disputed between Portugal and Castile stayed under Portuguese control; Guinea with its gold mines, Madeira
(discovered in 1419), the Azores (discovered about 1427) and Cape Verde (discovered about 1456). Portugal also won the exclusive right of conquering the Kingdom of Fez. Castile's rights over the Canary Islands
Canary Islands
were recognised while Portugal won the exclusive right of navigating, conquering and trading in all the Atlantic Ocean
Atlantic Ocean
south of the Canary Islands. Thus, Portugal attained hegemony in the Atlantic not only for its known territories but also for those discovered in the future. Castile was restricted to the Canaries. Portugal gained a war compensation of 106,676 dobles of gold in the form of Isabella's dowry.[3] Both infants (Isabella and Afonso) stayed in Portugal under the regimen of Tercerias, at the village of Moura, waiting for the appropriate age. The Catholic Monarchs
Catholic Monarchs
were responsible for all costs of maintaining the Tercerias. Juana had to choose between staying in Portugal and entering a religious order or marrying Prince Juan, son of the Catholic Monarchs: she chose the former. The Castilian supporters of Juana and Afonso were pardoned.


Afonso V of Portugal

This treaty, ratified later by the Papal bull
Papal bull
Aeterni regis in 1481, essentially gave the Portuguese free rein to continue their exploration along the African coast while guaranteeing Castilian sovereignty in the Canaries. It also prohibited Castilians from sailing to the Portuguese possessions without Portuguese licence. The Treaty of Alcáçovas, establishing Castilian and Portuguese spheres of control in the Atlantic, settled a period of open hostility, but it also laid the basis for future claims and conflict. Portugal's rival Castile had been somewhat slower than its neighbour to begin exploring the Atlantic, and it was not until late in the fifteenth century that Castilian sailors began to compete with their Iberian neighbours. The first contest was for control of the Canary Islands, which Castile won. It was not until the union of Aragon and Castile and the completion of the Reconquista
that the larger country became fully committed to looking for new trade routes and colonies overseas. In 1492, the joint rulers of the country decided to fund Christopher Columbus' expedition that they hoped would bypass Portugal's lock on Africa and the Indian Ocean, and instead, reach Asia by travelling west over the Atlantic. Long term implications[edit] The Treaty of Alcáçovas
Treaty of Alcáçovas
would mean that once Granada had forcibly been integrated into Castille, rather than a de facto vassal, Isabella and Ferdinand would have few directions to expand to. Thus by gaining the Canary Islands
Canary Islands
but losing the chance to crusade into Morocco, what did they have to lose by hiring Christopher Columbus
Christopher Columbus
to sail west and find the wealth that was expected to be gained from Guinea tenfold. The Treaty of Alcáçovas
Treaty of Alcáçovas
would set a precedent for the 1494 Treaty of Tordesillas (and its amendments), as well as the Congress of Berlin
Congress of Berlin
of 1884 See also[edit]

List of treaties


^ a b ↓ Bailey W. Diffie and George D. Winius “In a war in which the Castilians were victorious on land and the Portuguese at sea, ...” in Foundations of the Portuguese empire 1415–1580, volume I, University of Minnesota Press, 1985, p.152. ^ ↓ Historian Malyn Newitt: “All things considered, it is not surprising that the Portuguese emerged victorious from this first maritime colonial war. They were far better organised than the Castilians, were able to raise money for the preparation and supply of their fleets and had clear central direction from ... [Prince] John.” In A history of Portuguese overseas expansion, 1400–1668, Routledge, New York, 2005, p.39,40. ^ a b ↓ Mendonça, 2007, p. 102,103. ^ European Treaties Bearing on the History of the United States and Its Dependencies to 1648, p.33, Washington, D.C., Frances Gardiner Davenport, Carnegie Institution of Washington, 1917–37 – Google Books. Reprint edition, 4 vols., (October 2004), Lawbook Exchange, ISBN 1-58477-422-3 ^ ↓ British historian Ian Robertson: “Civil war, however, was immediately provoked by the partisans of "la Beltraneja", whose claim was supported by the king of Portugal, but after the indecisive battle of Toro (1476) the Portuguese withdrew leaving Fernando and Isabel firmly established” in Spain, the mainland, E. Benn, 1975, p.18. ^ ↓ Historian Carl hanson: “In March 1476, the Portuguese and Castilian armies met at Toro. Thanks largely to [Prince] João`s battlefield skills, the Portuguese managed to fight Fernando`s forces to a near draw. But the battle nonetheless effectively ended Afonso`s chances of ruling Castile. His Castilian partisans threw their support to Fernando and Isabella, rather than stick with a lost cause.” in Atlantic emporium: Portugal and the wider world, 1147–1497, volume 47 de Iberian studies, University press of the South, 2002, p.128. ^ ↓ Historian Marvin Lunenfeld: “. In 1476, immediately after the indecisive battle of Peleagonzalo, Ferdinand and Isabella hailed the result as a great victory and called a cortes at Madrigal. The newly created prestige was used to gain municipal support (...)” in The council of the Santa Hermandad: a study of the pacification forces of Ferdinand and Isabella, University of Miami Press, 1970, p.27. ^ Battle of Guinea: ↓ Alonso de Palencia, Década IV, Book XXXIII, Chapter V ( “Disaster among those sent to the mines of gold [Guinea]. Charges against the King...”), p.91-94. ^ ↓ Stephen R. Bown- 1494: How a family feud in Medieval Spain divided the world in half, D and M publishers inc., Canada, 2011, p.76.

Bibliography[edit] Books

BOWN, Stephen R.- 1494: How a family feud in Medieval Spain divided the world in half, D and M publishers inc., Canada, 2011. DIFFIE, Bailey W. and WINIUS, George D. – Foundations of the Portuguese Empire, 1415–1580, Volume 1, University of Minnesota Press, 1985. HANSON, Carl- Atlantic emporium: Portugal and the wider world, 1147–1497", volume 47 de Iberian studies, University press of the South, 2002. ISBN 978-1889431888. LUNENFELD, Marvin- The council of the Santa Hermandad: a study of the pacification forces of Ferdinand and Isabella", University of Miami Press, 1970. ISBN 978-0870241437. MENDONÇA, Manuela- O Sonho da União Ibérica – guerra Luso-Castelhana 1475/1479, Quidnovi, Lisboa, 2007, book description. ISBN 978-9728998882 NEWITT, Malyn (2005) A history of Portuguese overseas expansion, 1400–1668, New York: Routledge. ROBERTSON, Ian- Spain, the mainland", E. Benn, 1975.


PALENCIA, Alfonso de- Gesta Hispaniensia ex annalibus suorum diebus colligentis, Década III and IV (the three first Décadas were edited as Cronica del rey Enrique IV by Antonio Paz y Meliá in 1904 and the fourth as Cuarta Década by José Lopes de Toro in 1970).

External links[edit]

has original text related to this article: Treaty of Alcaçovas

Treaty Between Spain and Portugal, Concluded at Alcacovas, 4 September 1479 (English translation) The Library of Iberian Resources Online "A History of Spain and Portugal, the Expansion", by Stanley G. Payne.

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Cultural domain of Canary Islands


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