Duke of Braganza
Royal title
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The title Duke of Braganza in the House of Braganza is one of the most important titles in the peerage of Portugal. Wikipedia
Past holders: Duarte Pio, Duke of Braganza, John IV of Portugal, Duarte Nuno, Duke of Braganza, and more
First holder: Afonso I of Braganza
Present holder: Duarte Pio, Duke of Braganza