Isabella of Aragon, Queen of Germany
Isabella of Aragon( 1305 – 12 July 1330) was the daughter of James II of Aragon and his second wife Blanche of Anjou.
Queen consort of Frederick I of Austria.
She was a member of the House of Aragon
Violant of Castile
Violant of Castile( 1265–1287/1308), infanta of Castile and Lady of Biscay on her marriage to Diego López V de Haro.
She was the daughter of Alfonso X of Castile, and Violant of Aragon.
Joanna of Aragon, Countess of Ampurias
Joanna of Aragon( Barcelona 7 November 1344- Castellón, Ampurias 1385) was the second child of Peter IV of Aragon and his first wife Maria of Navarre.
She was an Infanta of Aragon by birth and Countess of Ampurias by her marriage.
She was a member of the House of Aragon.
James of Castile, Lord of Cameros
James of Castile( 11 July 1268 – 9 August 1284), was an infante of Castile and Lord of Cameros.
He was the youngest son of Alfonso X of Castile and Violant of Aragon.
Violant of Hungary
Violant of Hungary( c. 1215 – c. 1251) was a Queen consort of Aragon and the second wife of King James I of Aragon.
She is also called Jolán in Hungarian, Iolanda or Violant d' Hongria in Catalan and Yolanda or Violante de Hungría in Spanish.
Violant of Aragon
Violant or Violante of Aragon, also known as Yolanda of Aragon (8 June 1236 – 1301), was Queen consort of Castile and León from 1252 to 1284 as the wife of King Alfonso X of Castile.
Theodred II (Bishop of Elmham)
Theodred II was a medieval Bishop of Elmham.
The date of Theodred's consecration unknown, but the date of his death was sometime between 995 and 997.
Violant of Bar
Violant of Bar( c. 1365 – 3 July 1431) was queen consort of Aragon by marriage to John I of Aragon.
She served as" Queen- Lieutenant"( regent) of Aragon as proxy of her spouse from 1388 until 1395.
Alfonso X of Castile
Alfonso X of Castile (also occasionally known as Alfonso X, Alphonso, Alphonse, or Alfons, The Wise ; 23 November 1221 in Toledo4 April 1284 in Seville) was a Spaniard, who was the King of Castile, León and Galicia from 30 May 1252 until his death in 1284.
During the election of 1257, a dissident faction chose him to be Roman-German king on 1 April.
He renounced his claim to Germany in 1275, and in creating an alliance with England in 1254, his claim on Gascony as well.
Alfonso X fostered the development of a cosmopolitan court that encouraged learning.
Jews, Muslims, and Christians had prominent roles in his court.
As a result of his encouraging the translation of works from Arabic and Latin into the vernacular of Castile, many intellectual changes took place, perhaps the most notable being encouragement of the use of Castilian as a primary language of higher learning, science, and law.
Alfonso was a prolific author of Galician poetry, such as the "Cantigas de Santa Maria", which are equally notable for their musical notation as for their literary merit.
Alfonso's scientific interests—he is sometimes nicknamed the Astrologer ("el Astrólogo")—led him to sponsor the creation of the Alfonsine tables, and the Alphonsus crater on the moon is named after him.
As a legislator he introduced the first vernacular law code in Spain, the "Siete Partidas".
He created the Mesta, an association of sheep farmers in the central plain, but debased the coinage to finance his claim to the German crown.
He fought a successful war with Portugal, but a less successful one with Granada.
The end of his reign was marred by a civil war with his eldest surviving son, the future Sancho IV, which continued after his death.
Bonanada
Bonanada( fl. 1380), was a Spanish midwife.
Bonanada was the midwife of the royal family of Aragon.
She was evidently a trusted and reputed midwife, as she was recommended among the members of the royal family: she participated in the labor of Eleanor of Aragon, Queen of Castile as well as Violant of Bar, and was described by Peter IV of Aragon and Eleanor of Sicily as an excellent servant worthy of complete trust.
In 1373, she was accused by the heir to the throne, the future John I of Aragon, of the murder of Joan of France by use of sorcery.
However, Bonanada was given complete protection by the king and queen, who also asked that she be returned from John's custody as soon as possible, as her services were needed, and she evidently was.

Question: What is the date of birth of Violant Of Aragon's husband?
Answer: 23 November 1221