John III of Portugal
King of Portugal (r. 1521-1557)
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Updated 2026-05-29
Ruled Portugal and the Algarve from 1521 to 1557, earning the nickname "The Pious" for his devout approach to kingship. Took the throne at nineteen following his father Manuel I, grandson of Spain's Catholic Monarchs through his mother's bloodline.
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John III, nicknamed The Pious, was the King of Portugal and the Algarve from 1521 until he died in 1557. He was the son of King Manuel I and Maria of Aragon, the third daughter of the Catholic Monarchs of Spain, Ferdinand II of Aragon and Isabella I of Castile. John succeeded his father in 1521 at the age of nineteen.
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Stable12.4
Composite of search demand, mentions, audience & graph footprint.
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Momentum0.3
Historical20.0
Source confidence60.0
Completeness60.0
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- WikidataHigh confidencewikidata · wikidata.org
- WikipediaHigh confidencewikipedia · en.wikipedia.org
- Pantheon 2.0High confidencedatabase · pantheon.world
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