Duke of Viseu

Portuguese nobility title

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Coat of Arms of Prince Henry the Navigator, first Duke of Viseu. Coat of Arms of Infante Ferdinand, 1st Duke of Beja and 2nd Duke of Viseu.

Duke of Viseu (in Portuguese Duque de Viseu) was a Portuguese Royal Dukedom created in 1415 by King John I of Portugal for his third male child, Henry the Navigator, following the conquest of Ceuta.

When Henry the Navigator died without issue, his nephew, Infante Ferdinand of Portugal (King Edward, King of Portugal's younger son), who was already Duke of Beja, inherited the Dukedom of Viseu and, when his younger son became King of Portugal as Manuel I, this became a royal Dukedom.

## List of dukes of Viseu

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1. Infante Henrique, Duke of Viseu (1394–1460), King João I's fourth son (third surviving);
2. Infante Fernando, Duke of Viseu (1433–1470), also 1st Duke of Beja, King Duarte I's third son (second surviving);
3. Infante João, Duke of Viseu (1448–1472), also 2nd Duke of Beja, Infante Fernando's eldest son;
4. Infante Diogo, Duke of Viseu (1450–1484), also 3rd Duke de Beja, Infante Fernando's second son;
5. King Manuel I (1469–1521), Infante Fernando's seventh son (third surviving);
6. Infanta Maria, Duchess of Viseu (1521–1577), King Manuel I's daughter from his third marriage;

### Claimants

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Following the establishment of the Portuguese Republic, the following individuals have claimed to be the Dukes of Viseu:

1. Prince Miguel, Duke of Viseu (1878–1923), Prince Miguel, Duke of Braganza's elder son from his first marriage;
2. Infante Miguel, Duke of Viseu (born 1946), Prince Duarte Nuno, Duke of Braganza's second son.

## See also

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* Dukedoms in Portugal

## References

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This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. Please help improve this article by introducing more precise citations. (June 2024) (Learn how and when to remove this message)

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* ”Nobreza de Portugal e do Brasil" – Vol. I, pages 272/295; Vol. III, pages 544/546. Published by Zairol Lda., Lisbon 1989.

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Portuguese royalty

Designated royal titles|

* King and Queen of Portugal
* Prince and Princess Royal of Portugal
* Prince and Princess of Brazil
* Prince and Princess of Portugal
* Prince and Princess of Beira
* Duke and Duchess of Braganza
* Duke and Duchess of Barcelos
* Duke and Duchess of Porto
* Duke and Duchess of Beja
* Infante and Infanta of Portugal

Undesignated royal titles|

* Duke and Duchess of Coimbra
* Duke and Duchess of Viseu
* Duke and Duchess of Guimarães
* Duke and Duchess of Guarda

Royal households|

* House of the Infantado

List of heirs to the Portuguese throne - Portuguese nobility
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