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.