John, Constable of Portugal
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Infante John, Constable of Portugal was a Portuguese infante (prince) of the House of Aviz, Constable of Portugal and master of the Portuguese Order of St. James (Santiago). In Portugal, he is commonly referred to as the O Infante Condestável.
Detail from the St. Vincent Panels by Nuno Gonçalves, often believed to be a portrait of John of Reguengos, the Constable Prince.
Sepulcher of Infante John and Isabella of Barcelos in Batalha Monastery
House of Aviz
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The House of Aviz, also known as the Joanine Dynasty, was a dynasty of Portuguese origin which flourished during the Renaissance and the period of the Portuguese discoveries, when Portugal expanded its power globally.
King John I of Portugal, founder of the House of Aviz.
The House of Aviz became Portugal's reigning dynasty following the Battle of Aljubarrota in 1385.
Prince Henry the Navigator, famed leader of the Age of Discoveries and prince of the House of Aviz.
The death of King Sebastian I of Portugal at the Battle of Alcácer Quibir in 1578 led to the Portuguese succession crisis of 1580.