Dom João I of Braganza (1543 – 22 February 1583) was the 6th Duke of Braganza and 1st Duke of Barcelos, among other titles. He is known for pushing the claims of his wife, Infanta Catherine of Portugal, to the throne of Portugal.

Life

In 1563 he married his first cousin Infanta Catherine, daughter of Infante Edward, Duke of Guimarães and Isabel of Braganza (João's aunt).

After the disaster of the Battle of Ksar El Kebir, where heirless King Sebastian of Portugal died, the aged Cardinal-Infante Henry became king. Because Henry was old and not allowed to have legitimate children, a dynastical crisis occurred even before his death.

The Duke of Braganza supported his wife's claim to the throne — she was a granddaughter of King Manuel I. Philip II of Spain, another grandson of Manuel I and also a claimant to the throne, tried to bribe him into abandoning his wife's pretensions, offering him the Viceroyalty of Brazil, the post of Grand Master of the Order of Christ, a license to send a personal ship to India every year, and the marriage of his eldest son Teodósio to one of his daughters (either Isabella Clara Eugenia or Catherine Michaela).

The Duke of Braganza, influenced by his wife, refused these overtures.

Portuguese succession crisis

Main article: Portuguese succession crisis of 1580

When the Cardinal-King died, the Duke accompanied the governors of the Kingdom to Lisbon and Setúbal, trying to assure recognition for his wife's claim, but ultimately gave up and accepted the rule of Philip II (future Philip I of Portugal). After the civil war that followed, Anthony, Prior of Crato was defeated at the Battle of Alcântara, and Philip II entered Portugal and was confirmed by the Cortes of Tomar, where João occupied the post of Constable.

When King Philip left to Spain, he endowed the post of Constable of the Kingdom to João's heir Teodósio, a marquessate (Flexilla-Xarandilla) to his second son, Dom Duarte, and a commandment and many concessions to the third, Dom Alexandre, who was destined to become an ecclesiastic. He confirmed João's title of His Excellency and his rights of chancellery.

He died at Vila Viçosa in 1583.

Marriage and issue

Through his marriage with Infanta Catherine of Portugal were born:

Ancestry

Bibliography

  • "Nobreza de Portugal e Brasil", Vol. II pages 445 to 448. Published by Zairol Lda., Lisbon 1989

Media related to John, 6th Duke of Braganza at Wikimedia Commons

João I, Duke of Braganza
Cadet branch of the House of Aviz
Born: 1543 Died: 1583
Portuguese nobility
Preceded by Duke of Braganza; Marquis of Vila Viçosa;
Count of Ourém, Neiva, and Arraiolos
1563–1583 		Succeeded by
New title Duke of Barcelos
1562–1563
Allikas: https://en.wikipedia.org/wiki/John,_6th_Duke_of_Braganza
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