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Portuguese royalty
House of Aviz-Beja

Manuel I Children include    Miguel da Paz, Prince of Portugal and of Asturias    John III    Isabella, Holy Roman Empress    Beatrice, Duchess of Savoy    Louis, Duke of Beja    Ferdinand, Duke of Guarda and Trancoso    Cardinal-Infante Afonso    Henry    Edward, Duke of Guimarães    Maria, Lady of Viseu Grandchildren include    Anthony (illegitimate)    Maria, Duchess of Parma and Piacenza    Catherine, Duchess of Braganza Great-Great-Grandchildren include    John IV John III Children include    Maria Manuela, Princess of Portugal and of Asturias    John Manuel, Prince of Portugal Grandchildren include    Sebastian Sebastian Henry Anthony

The Infanta Maria, Lady of Viseu (1521–1577; Portuguese pronunciation: [mɐˈɾiɐ]; English: Mary) was a Portuguese infanta (princess) daughter of King Manuel I and his wife Eleanor of Habsburg.

Maria was born on June 18, 1521 in Lisbon. She is often referred as a protector of the arts and writing.^{[citation needed]} She was at one point considered as a second wife for her nephew and cousin (the future Philip II of Spain).^{[citation needed]} She died unmarried in Lisbon on October 10, 1577 and is buried in the Chapel of Our Lady of Luz.

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