Title: Dulce of Aragon
Content:  Dulce of Aragon (or of Barcelona; was Queen consort to King Sancho I of Portugal.
Title: Dulce of Aragon
Content:  As the eldest daughter of Ramon Berenguer IV, Count of Barcelona and his wife, Queen Petronila of Aragon, 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," 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 
Title: Dulce of Aragon
Content:  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.
Title: Dulce of León
Content:  Dulce was raised with her mother in Portugal after the annulment of her parents' marriage, along with her brother, Ferdinand, while her elder sister Sancha was raised at the court of their father in 1195. After the death of Sancha's brother (1214), Alfonso IX named his second son, also Ferdinand, his heir, bestowing on him the title infante (1216). In 1217, with the support of the aristocracy, Alfonso granted his daughters Sancha and Dulce the villages of Portela de San Juan, Burgo de Ribadavia and Allariz, to be ruled by them until their deaths, after which they would revert to the Crown. In that same year, Ferdinand's mother, Berengaria, inherited the crown of the Kingdom of Castile, but ceded 
Title: Dulce of León
Content:  Dulce present, is known as the "pact of the mothers". The treaty was signed Benavente and in compensation Ferdinand promised a yearly stipend of 30,000 maravedíes to each of his half-sisters and the lordship of certain castles. After the renunciation, Dulce retired to the Cistercian monastery of Santa María in Villabuena, in El Bierzo, which had been founded by her mother, with her father's blessing. Dulce died there around 1248; she was certainly still alive in 1243 when the Archbishop of Toledo, Rodrigo Jiménez de Rada, mentions in his history of the Iberian peninsula, ''De rebus Hispaniae, that Teresa of Portugal had had three children: Sancha and Ferdinand, who had died childless, and Dulce, who was still living.
Title: Hernando de Aragón
Content:  Born in Zaragoza, Aragón was the second illegitimate son of Alonso de Aragón, then Archbishop of Zaragoza and future Archbishop of Valencia and Lieutenant General of Aragon. His father was an illegitimate son of King Ferdinand II of Aragon, while his mother was Ana de Gurrea. Through his grandfather he was first-half cousins with Charles V, Holy Roman Emperor his wife Isabella of Portugal, Mary I of England, John III of Portugal and Ferdinand I, Holy Roman Emperor. The Archbishop had a son by María Jiménez Cerdán, Pedro, Lord of Ballobar.
Title: Alfonso of Aragon (1481–1500)
Content:  Alfonso of Aragon (1481 – 18 August 1500), Duke of Bisceglie and Prince of Salerno of the House of Trastámara, was the illegitimate son of Alfonso II King of Naples and his mistress Trogia Gazzela. His father, cousin of Ferdinand II King of Aragon, abdicated in favour of his legitimate son Ferdinand II of Naples.
Title: Enrico d'Aragona
Content:  Enrico "Arrigo" d'Aragona (birth date unknown – 1478) was an illegitimate son of the King of Naples, Ferrante I of Aragon. Despite the circumstances of his birth he was well regarded by his father and granted the title of Marchese (Marquis) of Gerace in 1473. He was the father of Luigi (The Cardinal of Aragon) and Giovanna (The Duchess of Amalfi).
Title: Dulce of Aragon
Content:  March 1188 – 27 July 1233), count through his marriage to Joan, Countess of Flanders; ; Henry (aft. March 1189 – 8 Dec aft. 1189), who died during infancy; ; Mafalda (1195/1196 – 1 May 1256), the wife of Henry I of Castile, was beatified in 1793; ; Branca (1198 – 17 November 1240), probably the twin sister of Berengaria, was raised in the court with her father and his mistress "a Ribeirinha" and, when she was eight or ten years old, was sent to live with her sisters at the Monastery of Lorvão. She was a nun at a convent in Guadalajara and was buried at the same monastery as her mother; ; Berengaria (1198 – 27 March 1221), probably the twin sister of Branca, married Valdemar II of Denmark in 1214. Eleven children were born from her marriage to King Sancho, eight of whom reached adulthood:
Title: Dulce of León
Content:  Dulce of León (1194/5 – 1248) was briefly suo jure Queen of León, reigning alongside her older sister, Sancha. The second daughter of Alfonso IX of León and youngest child by his first wife, Teresa of Portugal, Dulce was made co-heiress following the death of her older brother and the accession to the throne of Castile of her younger brother. Dulce and her sister did not get to rule, as their stepmother succeeded in setting up her own son on the throne.

Question: Who is the father of Dulce of Aragon?
Answer: Ramon Berenguer IV.