The Treaty of Alcáçovas and its Impact on European Colonialism

The Treaty of Alcáçovas, signed in 1479, ended the War of the Castilian Succession and shaped the Age of Exploration. It established spheres of influence for Portugal and Castile, leading to Portugal's control over African trade and the Atlantic slave trade, while affirming Spanish sovereignty over Castile and the Canary Islands. This treaty was a catalyst for worldwide colonization, influencing the rise of European empires.

See more

The Treaty of Alcáçovas and the Division of Atlantic Territories

The Treaty of Alcáçovas, signed in 1479, marked the end of the War of the Castilian Succession and was a significant precursor to the Age of Exploration. It delineated spheres of influence between Portugal and Castile (soon to be part of Spain), granting Portugal exclusive rights to navigate and colonize all of Africa (except for the Canary Islands, which were recognized as Castilian), and initiating Portugal's prominence in the Atlantic slave trade. The treaty also affirmed Ferdinand and Isabella's sovereignty over Castile, setting the stage for Spain's future imperial endeavors.
Antique brass nautical astrolabe on a wooden table with a hand-drawn map of the Iberian Peninsula and northwestern Africa in the background.

Historical Context and Importance of the Treaty of Alcáçovas

The Treaty of Alcáçovas arose from the dynastic disputes following King Henry IV of Castile's death, which led to the War of the Castilian Succession. Portugal's King Afonso V, who had married claimant Joanna la Beltraneja, sought to claim the Castilian crown but was ultimately thwarted. The treaty favored Portuguese maritime interests, granting them expansive rights to African exploration and trade, while confirming the rule of Isabella and Ferdinand in Castile, thereby quashing Afonso V's Iberian unification ambitions.

Want to create maps from your material?

Insert your material in few seconds you will have your Algor Card with maps, summaries, flashcards and quizzes.

Try Algor

Learn with Algor Education flashcards

Click on each Card to learn more about the topic

1

End of which conflict was marked by the Treaty of Alcáçovas?

Click to check the answer

The Treaty of Alcáçovas marked the end of the War of the Castilian Succession.

2

What did the Treaty of Alcáçovas initiate for Portugal?

Click to check the answer

The treaty initiated Portugal's prominence in the Atlantic slave trade.

3

What did the Treaty of Alcáçovas affirm for Ferdinand and Isabella?

Click to check the answer

The treaty affirmed Ferdinand and Isabella's sovereignty over Castile, leading to Spain's imperial expansion.

4

The treaty acknowledged ______ and ______ as the rulers of Castile and supported Portuguese dominance over African exploration and commerce.

Click to check the answer

Isabella Ferdinand

5

Objective of Ferdinand and Isabella in Treaty of Alcáçovas

Click to check the answer

Legitimize rule, end conflict with Portugal.

6

Impact on Joanna la Beltraneja by Treaty of Alcáçovas

Click to check the answer

Claim to Castilian throne ended, sidelined by treaty.

7

Portugal's monopoly on the slave trade in regions south of the Canary Islands boosted their ______ and ______ in Africa.

Click to check the answer

exploration colonization

8

Outcome for Portugal in Treaty of Alcáçovas

Click to check the answer

Secured control over African exploration, trade, and slave trade.

9

Spain's concession to Portugal in Treaty of Alcáçovas

Click to check the answer

Recognized Portuguese claims in Africa, focusing on Canary Islands and Europe.

10

The ______ of Alcáçovas was instrumental in affirming the rule of ______ and ______, which was a key step towards the unification of ______.

Click to check the answer

Treaty Isabella Ferdinand Spain

11

Treaty of Alcáçovas: Portugal's Monopoly

Click to check the answer

Granted Portugal exclusive rights to African exploration, leading to its colonial footholds in Africa and Asia.

12

Castile's Westward Focus Post-Treaty

Click to check the answer

Prompted by the treaty, Castile turned west, resulting in the European discovery of the Americas.

13

Impact of Iberian Division on European Dominance

Click to check the answer

The world division between Portugal and Spain set the stage for centuries of European global dominance.

Q&A

Here's a list of frequently asked questions on this topic

Similar Contents

History

France's Influence in the European Union

History

France's Diplomatic History

History

French Political Extremism

History

Republicanism and its Evolution in France