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, Prince Henry the Navigator, following the conquest of Ceuta.
When Prince Henry the Navigator died without issue, his nephew, Infante Ferdinand of Portugal (King Edward 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 the Dukes of Viseu
- Henry the Navigator, Prince of Portugal (1394-1460)
- Ferdinand of Portugal, 1st Duke of Beja (1433-1470)
- John of Viseu, 2nd Duke of Beja (1448-1472)
- Diogo of Viseu, 3rd Duke de Beja (1450-1484)
- King Manuel I of Portugal (1469-1521)
- Infanta Maria of Portugal
- Prince Miguel of Braganza (1878-1923)
- Infante Miguel, Duke of Viseu (born 1946) (brother of Duarte Pio, Duke of Braganza)
- ”Nobreza de Portugal e do Brasil" – Vol. I, pages 272/295; Vol. III, pages 544/546. Published by Zairol Lda., Lisbon 1989.