James I of Aragon
James I the Conqueror (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 House of Aragon and House of Barcelona 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 wrested the County of Barcelona from nominal French suzerainty and integrated it into his crown.
He renounced northward expansion and taking back the once Catalan territories in Occitania and vassal counties loyal to the County of Barcelona, lands that were lost by his father Peter II of Aragon in the Battle of Muret during the Albigensian Crusade and annexed by the Kingdom of France, and then decided to turn south.
His great part in the Reconquista was similar in Mediterranean Spain to that of his contemporary Ferdinand III of Castile in Andalusia.
One of the main reasons for this formal renunciation of most of the once Catalan territories in Languedoc and Occitania and any expansion into them is the fact that he was 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".
Maria of Aragon, Queen of Castile
Maria of Aragon was the Queen consort of Castile and Leon as the wife of John II of Castile.
She was the daughter of Ferdinand I of Aragon and Eleanor of Alburquerque.
Henry I of Castile
Henry I of Castile( 14 April 1204 – 6 June 1217) was king of Castile.
He was the son of Alfonso VIII of Castile and Eleanor of England, Queen of Castile( daughter of Henry II of England and Eleanor of Aquitaine).
He was the brother of Berenguela and Mafalda of Castile.
In 1211 Henry became heir to the throne when his older brother Ferdinand suddenly died.
When his father died in 1214 Henry was just 10 years old so the regency was assumed by Henry's older sister Berengaria of Castile, wife of Alfonso IX of Leon.
In 1215 Henry married Mafalda of Portugal, daughter of Sancho I of Portugal.
As he was very young, the marriage was not consummated, and it was dissolved in 1216 by Pope Innocent III on grounds of consanguinity.
In the same year, Henry became betrothed to his second cousin Sancha, heiress of León.
Henry died in Palencia in 1217 at the age of 13, killed by a tile coming off a roof.
His sister Berengaria succeeded him, before renouncing the throne in favour of her son Ferdinand III.
His body was interred at Las Huelgas monastery in Burgos.
Eleanor of Castile (died 1244)
Eleanor of Castile (1200 –1244) was a daughter of Alfonso VIII of Castile and Eleanor of England.
She was Queen consort of Aragon by her arranged marriage to James I of Aragon.
Her mother was a daughter of Henry II of England and Eleanor of Aquitaine.
Eleanor's sister Berengaria became Queen of Castile since their brother Henry I of Castile died with no issue and because Berengaria was the eldest of the daughters.
Another sister, Blanche became Queen of France by her marriage to Louis VIII of France.
Eleanor of Aragon, Queen of Castile
Eleanor of Aragon (20 February 1358 – 13 August 1382) was a daughter of King Peter IV of Aragon and his wife Eleanor of Sicily.
She was a member of the House of Aragon and Queen of Castile by her marriage.
Eleanor of Castile, Queen of Navarre
Eleanor of Castile( after 1363 – 27 February 1416) was an infanta of Castile and the Queen consort of Navarre.
She was the daughter of King Henry II of Castile and his wife, Juana Manuel of Castile, from a cadet branch of the Castilian royal house.
Eleanor was a member of the House of Trastámara.
Henry III of Castile
Henry III of Castile( 4 October 1379 – 25 December 1406), called the Mourner, was the son of John I and Eleanor of Aragon.
He succeeded his father as King of Castile in 1390.
Eleanor of England, Queen of Castile
Eleanor of England( c. 1161 – 31 October 1214), was Queen of Castile and Toledo as wife of Alfonso VIII of Castile.
She was the sixth child and second daughter of Henry II, King of England, and Eleanor of Aquitaine.
Urraca of Castile, Queen of Portugal
Urraca of Castile (1186/28 May 1187 – 3 November 1220) was a daughter of Alfonso VIII of Castile and Eleanor of England.
Her maternal grandparents were Henry II of England and Eleanor of Aquitaine.
Rahel la Fermosa
Rahel( La( Ladino for" Rachel the Beautiful"; originally" Rahel Esra"; c. 1165, Toledo – 1195, Toledo) was a Jewish woman who lived in Toledo, Spain in the twelfth century.
She was the paramour of King Alfonso VIII of Castile, husband of Eleanor of England, for almost seven years.
Under her influence, a number of Spanish Jews were appointed to positions within the royal court.
This led to discontent among the clergy and nobility.
Rahel's enemies had her murdered, together with her fellow Jews in the court, in the presence of the king himself.

Question: When did Eleanor Of Castile (Died 1244)'s husband die?
Answer: 27 July 1276