Title: Afonso II of Portugal
Content:  Afonso II (English: Alphonzo; Archaic Portuguese: Affonso; Portuguese-Galician: Alfonso or Alphonso; Latin: Alphonsus; 23 April 1185 – 25 March 1223), nicknamed the Fat (o Gordo) or the Leper (o Gafo), was the third king of Portugal and the second but eldest surviving son of Sancho I of Portugal and Dulce of Aragon. Afonso succeeded his father on 27 March 1211.
Title: Afonso VI of Portugal
Content:  He succeeded his father (João IV) in 1656 at the age of thirteen. His mother, Luisa of Medina-Sidonia, was named regent in his father's will. His mental instability and paralysis, plus his lack of interest in government, left his mother as regent for six years, until 1662. Afonso oversaw decisive military victories over the Spanish at Elvas (14 January 1659), Ameixial (8 June 1663) and Montes Claros (17 June 1665), culminating in the final Spanish recognition of sovereignty of Portugal's new ruling dynasty, the House of Braganza, on 13 February 1668 in the Treaty of Lisbon.
Title: Afonso V of Portugal
Content: John, Prince of Portugal (29 January 1451). ; Joan, Princess of Portugal (6 February 1452 – 12 May 1490): Known as Saint Joan of Portugal or Saint Joan Princess. ; John II of Portugal (3 March 1455 – 25 October 1495): Succeeded his father as 13th King of Portugal. Afonso married firstly, in 1447, Isabella of Coimbra, with whom he had three children:  Afonso married secondly, in 1475, his niece Joanna of Castile, known as "La Beltraneja".
Title: Afonso IV of Portugal
Content: Maria (1313 – 18 January 1357), was the wife of Alfonso XI of Castile, and mother of the future King Peter of Castile. Due to the affair of her husband with his mistress Leonor de Guzmán "it was an unfortunate union from the start, contributing to dampening the relations of both kingdoms"; ; Afonso (1315–1317), died in his infancy. Buried at the disappeared Convento das Donas of the Dominican Order in Santarém; ; Denis (born 12 February 1317), died a few months after his birth, and was buried in Alcobaça Monastery; ; Peter (8 April 1320 – 18 January 1367), the first surviving male offspring, he succeeded his father. When his wife Constance died in 1345, Queen Beatrice took care of the education of 
Title: Afonso III of Portugal
Content:  Afonso was born in Coimbra. As the second son of King Afonso II of Portugal, he was not expected to inherit the throne, which was destined to go to his elder brother Sancho. He lived mostly in France, where he married Countess Matilda II of Boulogne in 1238, thereby becoming count of Boulogne, Mortain, Aumale and Dammartin-en-Goële jure uxoris.
Title: Afonso, Prince of Portugal (1526)
Content:  Afonso, Prince of Portugal was the first son of king John III of Portugal and his queen, Catherine of Austria. He was the Prince of Portugal but died in the same year he was born, in 1526.
Title: Afonso II of Portugal
Content: Sancho II (8 September 1207 – 4 January 1248), king of Portugal; ; Afonso III (5 May 1210 – 16 February 1279), king of Portugal; ; Eleanor (1211–1231), queen of Denmark ; Ferdinand (1218–1246), lord of Serpa João Afonso (d. 9 October 1234), buried in the Alcobaça monastery; ; Pedro Afonso (d. after 1249), who accompanied his brother King Afonso in the conquest of Faro in 1249. He had an illegitimate daughter named Constança Peres. In 1206, he married Urraca, daughter of Alfonso VIII of Castile and Eleanor of England. The couple were both descendants of King Alfonso VI of León. The offspring of this marriage were:  Out of wedlock, he had two illegitimate sons:
Title: Afonso V of Portugal
Content:  Afonso was born in Sintra, the second son of King Edward of Portugal by his wife Eleanor of Aragon. Following the death of his older brother, Infante João (1429–1433), Afonso acceded to the position of heir apparent and was made the first Prince of Portugal by his father, who sought to emulate the English Court's custom of a dynastic title that distinguished the heir apparent from the other children of the monarch. He was only six years old when he succeeded his father in 1438. During his minority, Afonso was placed under the regency of his mother, Leonor, in accordance 
Title: Afonso IV of Portugal
Content:  Afonso, born in Lisbon, was the rightful heir to the Portuguese throne. However, he was not Denis' favourite son, the old king preferring his illegitimate son, Afonso Sanches. The notorious rivalry between the half brothers led to civil war several times. On 7 January 1325, Afonso's father died and he, Afonso IV, became king, whereupon he exiled his rival, Afonso Sanches, to Castile, and stripped him of all the lands and fiefdom given by their father, Denis. From Castile, Afonso Sanches orchestrated a series of attempts to usurp the crown. After a few failed attempts at invasion, the brothers signed a peace treaty, arranged by Afonso's mother Queen Elizabeth. In 1309, Afonso married Beatrice, daughter of King Sancho IV of Castile and María de Molina. The first-born of this union was a daughter, Maria.
Title: History of Portugal (1640–1777)
Content:  Queen Mother, Afonso assumed the control of the country. His reign was short due to a conspiracy of his wife, Queen Marie Françoise of Savoy, who joined with Afonso's brother, Prince Peter, to secure an annulment of her marriage to the king in 1667 based on his impotence. Peter later married Marie Françoise. In the same year, Peter managed to gain enough support to force the king to relinquish control of the government and to name him Prince Regent. Peter continued as Prince Regent but de facto ruler of Portugal for the next 16 years. When Afonso died in 1683, Peter succeeded him 

Question: Who is the mother of Afonso II of Portugal?
Answer: Dulce of Aragon.
Dulce Berenguer de Barcelona.