Duke of Viseu (in Portuguese ''Duque de Viseu'') was a Portuguese Royal Dukedom created in 1415 by King

John I of Portugal John I ( pt, João �uˈɐ̃w̃ 11 April 1357 – 14 August 1433), also called John of Aviz, was King of Portugal from 1385 until his death in 1433. He is recognized chiefly for his role in Portugal's victory in a succession war with Casti ...

for his third male child,

Henry the Navigator ''Dom'' Henrique of Portugal, Duke of Viseu (4 March 1394 – 13 November 1460), better known as Prince Henry the Navigator ( pt, Infante Dom Henrique, o Navegador), was a central figure in the early days of the Portuguese Empire and in the 15t ...

, following the conquest of Ceuta. When

died without issue, his nephew,

Infante Ferdinand of Portugal Infante Fernando of Portugal (''Fernando Maria Luís de Saxe-Coburgo-Gotha e Bragança''; 23 July 1846 – 6 November 1861) was the fourth son of Queen Maria II of Portugal and King-consort Fernando II and a member of the House of Braganza. ...

(King

Edward, King of Portugal Edward ( pt, Duarte (; 31 October 1391 – 9 September 1438), also called Edward the King Philosopher (''Duarte o Rei-Filósofo'') or the Eloquent (''o Eloquente''), was the King of Portugal from 1433 until his death. He was born in Viseu, the son ...

'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 the Dukes of Viseu

# Infante Henrique, Duke of Viseu (1394–1460), King João I's fourth son (third surviving); # Infante Fernando, Duke of Viseu (1433–1470), also 1st Duke of Beja, King Duarte I's third son (second surviving); # Infante João, Duke of Viseu (1448–1472), also 2nd Duke of Beja, Infante Fernando's eldest son; #

Infante Diogo, Duke of Viseu Infante Diogo of Viseu (1450–1484) was the second son of Ferdinand, Duke of Viseu, and his wife Beatriz, Duchess of Viseu. History In 1472, when his older brother John, Duke of Viseu, died without issue, Diogo inherited his titles and estat ...

(1450–1484), also 3rd Duke de Beja, Infante Fernando's second son; # King Manuel I (1469–1521), Infante Fernando's seventh son (third surviving); # Infanta Maria, Duchess of Viseu (1521–1577), King Manuel I's daughter from his third marriage;

Claimants

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

Prince Miguel, Duke of Viseu Prince Miguel of Braganza, Duke of Viseu (22 September 1878 – 21 February 1923) was a member of the exiled branch of the House of Braganza. The eldest son of the Miguelist pretender to the throne of Portugal he married an American heiress in ...

(1878–1923),

Prince Miguel, Duke of Braganza Prince Miguel Januário of Braganza (; full name Miguel Maria Carlos Egídio Constantino Gabriel Rafael Gonzaga Francisco de Paula e de Assis Januário de Bragança; 19 September 1853 – 11 October 1927) was the Miguelist claimant to the throne ...

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

Bibliography

*”Nobreza de Portugal e do Brasil" – Vol. I, pages 272/295; Vol. III, pages 544/546. Published by Zairol Lda., Lisbon 1989. {{DEFAULTSORT:Viseu Dukedoms of Portugal Viseu 1415 establishments in Portugal

List of the Dukes of Viseu

Claimants

See also

Bibliography