Dulce of Aragon (or of Barcelona) (1160–1 September 1198) was Queen consort to King Sancho I of Portugal, the eldest daughter of Ramon Berenguer IV, Count of Barcelona and his wife, Queen Petronila of Aragon and sister of the future King Alfonso II of Aragon.Dulce married Infante Sancho in 1174, an event that renewed the alliance between the Portugal and Dulce's native Aragon. Their union was arranged by her brother, Alfonso II of Aragon.