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Concept
House of Aviz
Summary
The House of Aviz (Portuguese: Casa de Avis), also known as the Joanine Dynasty (Dinastia Joanina), was a dynasty of Portuguese origin which flourished during the Renaissance and the period of the Portuguese discoveries, when Portugal expanded its power globally.
The house was founded by King John I of Portugal, Grand-Master of the Order of Aviz and illegitimate son of King Pedro I (of the Portuguese House of Burgundy), who ascended to the throne after successfully pressing his claim during the 1383–1385 Portuguese interregnum. Aviz monarchs would rule Portugal through the Age of Discovery, establishing Portugal as a global power following the creation of the Portuguese Empire. In 1494, Pope Alexander VI divided the world under the dominion of Portugal and Spain with the Treaty of Tordesillas.
The House of Aviz has produced numerous prominent figures in both European and global history, including Prince Henry the Navigator, King Manuel I of Portugal, and Holy Roman Empress Isabella of Portugal. Numerous Aviz dynasts have also claimed thrones or titles across Europe, including King Peter V of Aragon and John, Prince of Antioch. The Aviz ruled Portugal from 1385 until 1580, when the Philippine Dynasty succeeded to the throne following the Portuguese succession crisis of 1580.
The founder of the House of Aviz, King John I of Portugal, was born in 1357 as the illegitimate child of King Pedro I of Portugal, a member of the Portuguese House of Burgundy, and Teresa Lourenço, daughter of a Lisbon merchant. In 1364, at 7 years old, John was made Grand Master of the Order of Aviz, henceforth becoming known as John of Aviz.
1383–1385 Portuguese interregnum
The House of Aviz was established as a result of the dynastic crisis following the 1383 death of Ferdinand I. Ferdinand's widow Leonor Telles was disliked by both the nobility and the commoners for having left her first husband and for having had their marriage annulled in order to marry King Ferdinand.
Official source
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