Title: James of Aragon (monk)
Content:  James of Aragon (29 September 1296 – July 1334) was the eldest child of King James II. His mother was Blanche of Naples, the second of his father's four wives. As the king's eldest son, James was not only an infante but also heir apparent to the Crown of Aragon, a realm stretching from north-eastern Spain to Sardinia and Corsica. He is best known for his unexpected decision to renounce his marriage and right to the throne and become a monk.
Title: James I of Aragon
Content:  raised by the Knights Templar crusaders, who had defeated his father fighting for the Pope alongside the French, so it was effectively forbidden for him to try to maintain the traditional influence of the Count of Barcelona that previously existed in Occitania and Languedoc. As a legislator and organiser, he occupies a high place among the European kings. James compiled the Llibre del Consolat de Mar, which governed maritime trade and helped establish Aragonese supremacy in the western Mediterranean. He was an important figure in the development of the Catalan language, sponsoring Catalan literature and writing a quasi-autobiographical chronicle of his reign: the Llibre dels fets.
Title: James I of Aragon
Content:  James I the Conqueror (Jaime el Conquistador, Jaume el Conqueridor; 2 February 1208 – 27 July 1276) was King of Aragon, Count of Barcelona, and Lord of Montpellier from 1213 to 1276; King of Majorca from 1231 to 1276; and Valencia from 1238 to 1276. His long reign—the longest of any Iberian monarch—saw the expansion of the Crown of Aragon in three directions: Languedoc to the north, the Balearic Islands to the southeast, and Valencia to the south. By a treaty with Louis IX of France, he achieved the renunciation of any possible claim of French suzerainty over the County of Barcelona and the other Catalan counties, 
Title: James I of Aragon
Content:  James was born at Montpellier as the only son of Peter II of Aragon and Marie of Montpellier. As a child, James was made a pawn in the power politics of Provence, where his father was engaged in struggles helping the Cathar heretics of Albi against the Albigensian Crusaders led by Simon IV de Montfort, Earl of Leicester, who were trying to exterminate them. Peter endeavoured to placate the northern crusaders by arranging a marriage between his two-year-old son James and Simon's daughter. He entrusted the boy to be educated in Montfort's care in 1211, but was soon forced to take up arms against him, dying at the Battle of Muret on 12 September 1213. Montfort would willingly have used James as a means of extending his own power had not the Aragonese appealed to Pope Innocent III, who 
Title: James I of Aragon
Content:  daughter of Alfonso VIII of Castile and Eleanor of England. Though he later had the marriage annulled, his one son by her was declared legitimate: In 1235, James remarried to Yolanda, daughter of Andrew II of Hungary by his second wife Yolande de Courtenay. She bore him numerous children: James married thirdly Teresa Gil de Vidaure, but only by a private document, and left her when (as he claimed) she developed leprosy. The children in the third marriage were recognised in his last will as being in the line of succession to the throne, should the senior lines fail. James also had several lovers, both during and after his marriages, and a few bore him illegitimate sons. By Blanca d'Antillón: By Berenguela Fernández: By Elvira Sarroca:
Title: James I of Aragon
Content: Alfonso (1229–1260), married Constance of Béarn, Viscountess of Marsan Yolanda, also known as Violant, (1236–1301), married Alfonso X of Castile ; Constance (1239–1269), married Manuel of Castile, son of Ferdinand III ; Peter III (1240–1285), successor in Aragon, Catalonia, and Valencia ; James II (1243–1311), successor in Balearics and Languedoc ; Ferdinand (1245–1250) ; Sancha (1246–before 1275), died in the Holy Land. ; Isabella (1248–1271), married Philip III of France ; Maria (1248–1267), nun ; Sancho (1250–1275), Archbishop of Toledo ; Eleanor (born 1251, died young) James (c.1255–1285), lord of Xèrica ; Peter (1259–1318), lord of Ayerbe Fernán Sánchez (or Fernando Sánchez) (1240–1275), baron of Castro Pedro Fernández, baron of Híjar Jaume Sarroca (born 1248), Bishop of Huesca from 1273 to 1290 James first married, in 1221, 
Title: James II of Aragon
Content:  James II (Catalan: Jaume II; Spanish: Jaime II; 10 April 1267 – 2 or 5 November 1327), called the Just, was the King of Aragon and Valencia and Count of Barcelona from 1291 to 1327. He was also the King of Sicily (as James I) from 1285 to 1295 and the King of Majorca from 1291 to 1298. From 1297 he was nominally the King of Sardinia and Corsica, but he only acquired the island of Sardinia by conquest in 1324. His full title for the last three decades of his reign was "James, by the grace of God, king of Aragon, Valencia, Sardinia and Corsica, and count of Barcelona" (Latin: Iacobus Dei gratia rex Aragonum, Valencie, Sardinie, et 
Title: James II, Count of Urgell
Content:  of the House of Barcelona and its last male member, he was the centre of opposition to the House of Trastámara after it succeeded to the Crown of Aragon in 1412. Born at Balaguer to Peter II of Urgell and Margaret Palaiologue of Montferrat, he inherited the county of Urgell from his father in 1408. In Valencia on 29 June 1407, he had married Isabella, daughter of Peter IV of Aragon and sister of Martin the Humane, who appointed him lieutenant of the Kingdom of Aragon in 1408. Following the death in 1409 of Martin the Younger, heir to the Aragonese Crown, the king appointed James governor-general, an act interpreted by James as implying his heirdom. Following the death of the king 
Title: John I of Aragon
Content: James (Valencia, 24 June 1374 - Valencia, 22 August 1374) ; Joanna (Daroca, October 1375 - Valencia, September 1407), who married on 4 June 1392 at Barcelona to Mathieu, Count of Foix. Together they claimed the throne of Aragon after her father's death. Matthew of Foix invaded Aragonese territories, but was driven back by the new King Martin. Joanna died soon after, childless. ; John (Barcelona, 23 July 1376 – 24/31 July 1376) ; Alfonso (9 September 1377 – 1377) ; Eleanor (Zaragoza, 13 July 1378 – Zaragoza, 1378) James (22 March 1382 – 1 September 1388), Duke of Girona and Count of Cervera ; Yolande (Zaragoza 1384 - Saumur 14 November 1442), married on 
Title: James II of Aragon
Content:  ac comes Barchinone). Born at Valencia, James was the second son of Peter III of Aragon and Constance of Sicily. He succeeded his father in Sicily in 1285 and his elder brother Alfonso III in Aragon and the other Spanish territories, including Majorca, in 1291. He was forced to cede Sicily to the papacy in 1295, after which it was seized by his younger brother, Frederick III, in 1296. In 1298 he returned Majorca to the deposed king of Majorca, a different James II, having received rights to Sardinia and Corsica from Pope Boniface VIII. On 20 January 1296, Boniface issued the bull Redemptor mundi granting James the titles of Standard-bearer, Captain General and Admiral of the Roman church.

Question: Who is the father of James I of Aragon?
Answer: Peter II of Aragon.