Isabella of Braganza, Duchess of Guimarães

Isabella of Braganza
Spouse(s)	Infante Duarte, Duke of Guimarães
Noble family	House of Braganza
Father	Jaime, Duke of Braganza
Mother	Eleanor of Mendoza
Born	1514
Died	16 September 1576(1576-09-16) Vila Viçosa

Isabel of Braganza, also known as Isabella or Elizabeth, (1514-1576) was a daughter of Jaime, Duke of Braganza (a nephew of Manuel I of Portugal) and Eleanor of Mendoza, she married her cousin Infante Duarte, Duke of Guimarães a son of Manuel I and Maria of Aragon in 1537, Isabella was dowried with the Dukedom of Guimarães in her own right. After the marriage, Infante Duarte became the 4th Duke of Guimarães.

Her younger daughter Catherine became the Duchess of Braganza and had a claim to the throne of Portugal. She was also part of the succession crisis.

This marriage produced three children:

• Mary of Guimarães (1538-1577), married Alessandro Farnese, Duke of Parma and Piacenza.
• Infanta Catherine of Guimarães (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 II, 5th Duke of Guimarães (1541-1576)