Treaty of Alcáçovas

Quick Facts: Who was Treaty of Alcáçovas?

Subject:

Treaty of Alcáçovas

Known for:

1479 treaty ending the War of the Castilian Succession, dividing Atlantic influence.

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Origins & Early Life

The Treaty of Alcáçovas (also known as Treaty or Peace of Alcáçovas-Toledo) was signed on 4 September 1479 between the 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 Castilians on land and a Portuguese victory on the sea.

Career & Major Achievements

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 Castilian Monarchs to the Castilian throne and Portuguese throne, respectively The division of the 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.

Enduring Legacy & Impact

This was known as Tercerias de Moura, and included the payment to Portugal of a war compensation by the Catholic Monarchs in the form of marriage dowry.

Chronological Milestones & Life Events

1. 1479: 1479 Milestone — The Treaty of Alcáçovas (also known as Treaty or Peace of Alcáçovas-Toledo) was signed on 4 September 1479 between the Catholic Monarchs of Castile and Aragon on one side and Afonso V and his son, Prince John of Portugal, on the other side.

Historical Fact-Check Quiz: Treaty of Alcáçovas

True or False: “True or false: The Treaty of Alcáçovas solely recognized the existing monarchies without altering the division of overseas territories.”

Answer (FALSE ❌): False. The treaty explicitly regulated the division of the Atlantic Ocean and overseas territories into two distinct zones of influence, fundamentally altering the geopolitical map.

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• Treaty of Alinagar — Chrono-Wiki Encyclopedia Entry: 1757 treaty between British East India Company and Nawab of Bengal.
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