Duke nke Viseu

Duke nke Viseu (n'asụsụ Portugal Duque de Viseu) bụ Royal Dukedom nke mba Portugal eze nke Eze John nke Mbụ nke Portugal guzobere na 1415 maka nwa nwoke ya nke atọ, Henry the Navigator, mgbe mmeri nke Ceuta gasịrị. 

Mgbe Henry the Navigator nwụrụ n'enweghị nwa, nwa nwanne ya nwoke, Infante Ferdinand nke Portugal (Eze Edward, obere nwa nke Eze Portugal), onye bụrụlarị Duke nke Beja, ketara Duke nke Viseu na, mgbe nwa ya nwoke nke obere ghọrọ Eze Portugal dị ka Manuel I, nke a ghọrọ Duchy nke eze.

 Ndepụta nke ndị Duke nke Viseu 

 Infante Henrique, Duke of Viseu (1394–1460), nwa nwoke nke anọ nke King João I (nke atọ fọrọ ndụ);
 Infante Fernando, Duke of Viseu (1433–1470), bụkwa Duke nke mbụ nke Beja, nwa nwoke nke atọ nkeKing Duarte I(nke abụọ fọrọ ndụ);
 Infante João, Duke of Viseu (1448–1472), bụkwa Duke nke abụọ nke Beja, nwa mbụ nke Infante Fernando;
 Infante Diogo, Duke of Viseu (1450–1484), bụkwa Duke nke atọ nke Beja, nwa nke abụọ nke Infante Fernando;
 King Manuel I (1469–1521), Nwa nke asaa nke Infante Fernando (nke atọ fọrọ ndụ);
 Infanta Maria, Duchess of Viseu (1521–1577), nwa nwanyị King Manuel I sitere n'alụm di na nwunye nke atọ ya;

 Ndị na-asị na ha abụtụla Duke 
Mgbe e guzobechara Republic nke Portugal, ndị a na-esonụ ekwuola na ha abụtụla ndị Duke nke Viseu:

 Prince Miguel, Duke nke Viseu (1878-1923), Prince Miguel, nwa nwoke nnukwu nke Duke nke Braganza site na alụmdi na nwunye mbụ ya;
 Infante Miguel, Duke nke Viseu (amụrụ na 1946), Prince Duarte Nuno, nwa nwoke nke abụọ nke Duke nke Braganza.

 Hụkwa 

 Obodo ndị eze na Portugal

 Edensibịa 

 "Nkwado nke Portugal na Brazil" - Vol. I, peeji nke 272/295; Mpịakọta. III, peeji nke 544/546. Nke Zairol Lda bipụtara. [Lisbon 1989]