|Dulce of Aragon|
|Queen consort of Portugal|
Barcelona, Kingdom of Aragon
|Died||1198 (aged 37–38)|
Coimbra, Kingdom of Portugal
|Spouse||Sancho I of Portugal|
|Father||Ramon Berenguer IV, Count of Barcelona|
|Mother||Petronilla of Aragon|
Dulce of Aragon[a][b] also called Dulce of Barcelona, was Queen of Portugal as the wife of King Sancho I of Portugal.
As the eldest daughter of Queen Petronila of Aragon and her husband, Count Ramon Berenguer IV of Barcelona, she was the sister of the future King Alfonso II of Aragon.
Her bethrothal to infante Sancho, son of Afonso Henriques, the first king of Portugal, was celebrated when she was eleven years old and the marriage in 1174. Not much is known about her life prior to her arrival in Portugal or of the wedding tokens she received upon her marriage.
"A beautiful and excellent lady, quiet and modest, her personality coinciding with her name,"[c] Dulce was used as a commodity to seal an alliance which aimed to "strengthen Portugal and to contain the expansionism of Castile and León" and she played the role that was expected of her as a wife and as the mother of numerous children. At the same time, the marriage compensated for the broken engagement of her husband's sister, Infanta Mafalda with her brother, the future King Alfonso II of Aragon. With the death of King Afonso Henriques in 1185, her husband ascended the throne and she became Queen consort of Portugal. In his first will, executed in 1188, her husband gave her the income from Alenquer, of the lands along the banks of the Vouga River, of Santa Maria da Feira and of Oporto.
Dulce did not live long after the birth of her last two daughters, Branca and Berengaria, probably twins, and died in 1198 probably succumbing to the plague and weakened by the successive childbirths. She was buried in the Monastery of Santa Cruz in Coimbra.
Eleven children were born from her marriage to King Sancho, eight of whom reached adulthood: