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Find sources: "Duke of Viseu" – news · newspapers · books · scholar · JSTOR (October 2022) (Learn how and when to remove this message) |
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.
Following the establishment of the Portuguese Republic, the following individuals have claimed to be the Dukes of Viseu:
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Portuguese royalty
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Designated royal titles |
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Undesignated royal titles |
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Royal households |
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List of heirs to the Portuguese throne - Portuguese nobility |