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João, Marquis of Montemor-o-Novo

1430 – 1484

Portuguese nobleman

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About João, Marquis of Montemor-o-Novo

Lived 1430 – 1484 (aged 53–54).

João of Braganza, born ca. 1430, was the second son of Fernando I, Duke of Braganza and of his wife, the duchess Joan of Castro.

Life Through a letter issued on 30 October 1471, king Afonso V of Portugal granted him the Lordship of Montemor-o-Novo and on 25 April 1473, he was appointed the 7th Constable of Portugal, as was his great-grandfather, Nuno Álvares Pereira. Later, in 1478, the same king granted him the title of Marquis of Montemor-o-Novo – he was the first and sole marquis of this title.

Before 25 July 1460, he married his 3rd cousin, Isabel of Noronha (niece of Christopher Columbus), a natural daughter of the Archbishop of Lisbon Pedro de Noronha (who was himself, a grandson of king Fernando I of Portugal and grandson of king Henry II of Castile through an illegitimate line).

When king John II of Portugal succeeded to the Portuguese throne and started actively his policy against the high nobility power (namely the Braganza and the Viseu families) João soon became one of the king's targets. He escaped to Castile but in Portugal he was condemned for treason, and his statue was symbolically executed in Abrantes, on 12 September 1483.

He died in Seville, on 30 April 1484, where he was buried, together with his wife, in the Santa Paula Monastery.

Ancestry

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Important facts

Born
1430, Kingdom of Portugal
Birth century
Died
1484, Seville
Nationality
Kingdom of Portugal

Family & relationships

Parent
Fernando I, Duke of Braganza

People in João, Marquis of Montemor-o-Novo's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped João, Marquis of Montemor-o-Novo's

Frequently asked questions

Who was João, Marquis of Montemor-o-Novo?

Portuguese nobleman

When was João, Marquis of Montemor-o-Novo born?

João, Marquis of Montemor-o-Novo was born in 1430 in Kingdom of Portugal.

When did João, Marquis of Montemor-o-Novo die?

João, Marquis of Montemor-o-Novo died in 1484 in Seville.

What nationality was João, Marquis of Montemor-o-Novo?

João, Marquis of Montemor-o-Novo's recorded nationality: Kingdom of Portugal.

Sources & further reading

· Wikipedia: João, Marquis of Montemor-o-Novo

· Wikidata: Q1768294

· DBpedia: João of Braganza, Marquis of Montemor-o-Novo

Cite this page

APA: Biography.guide. (2026). João, Marquis of Montemor-o-Novo. https://biography.guide/joao-marquis-of-montemor-o-novo/

MLA: "João, Marquis of Montemor-o-Novo." Biography.guide, https://biography.guide/joao-marquis-of-montemor-o-novo/.

Chicago: "João, Marquis of Montemor-o-Novo." Biography.guide. https://biography.guide/joao-marquis-of-montemor-o-novo/.

Data last updated: 2026-09-21 · Spot an error? Report a correction.

Portrait: Wikimedia Commons · author & licence

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