Duarte, Duke of Guimarães (7 October 1515 in Lisbon – 20 September 1540 in Lisbon) was a Portuguese infante (prince); the sixth son of King Manuel I of Portugal and his wife Maria of Aragon. Life He had as tutor André de Resende, who later wrote Duarte's biography. He also loved hunting and was quite a good musician. In 1537 he married Isabella of Braganza, daughter of James, Duke of Braganza, who was dowried with the Dukedom of Guimarães in her own right. After the marriage, Infante Duarte became the 4th Duke of Guimarães. This marriage produced three children: Infanta Maria of Guimarães (1538–1577), married Alessandro Farnese, Duke of Parma and Piacenza. Infanta Catarina, Duchess of Braganza (1540–1614), Duchess of Braganza, married to John, 6th Duke of Braganza, she was a claimant of the throne of Portugal in 1580 (''See: 1580 Portuguese succession crisis). Infante Duarte, 5th Duke of Guimarães (1541–1576) He is buried in the Monastery of Jerónimos in Lisbon. Ancestry See also Descendants of Manuel I of Portugal List of Portuguese Dukedoms André de Resende References Bibliography ”Nobreza de Portugal e do Brasil” – Vol. I, page 387. Published by Zairol Lda., Lisbon 1989. Portuguese infantes House of Aviz 1515 births 1540 deaths 104 People from Lisbon 16th-century Portuguese people Sons of kings