Catherine of Lancaster
Catherine of Lancaster (Castilian: "Catalina"; 31 March 1373 – 2 June 1418) was Queen of Castile by marriage to King Henry III of Castile.
She governed Castile as regent from 1406 until 1418 during the minority of her son.
Queen Catherine was the daughter of John of Gaunt, 1st Duke of Lancaster, and his second wife, Constance of Castile (the daughter and heir of King Peter of Castile, who died at the hands of his half brother Henry II).
She was born in Hertford Castle, her father's chief country home, on 31 March 1373.
Catherine became Queen of Castile through her marriage to Henry III.
Blanche of Castile (1319–75)
Blanche of Castile( August 1319 – 1375) was by birth a member of the Castilian House of Burgundy.
She was the only child of Infante Peter of Castile, Lord of Los Cameros( son of King Sancho IV of Castile) and Infanta Maria of Aragon( daughter of King James II of Aragon).
Diego García de Padilla
Diego García de Padilla( died 1368) was a Spanish nobleman who became Master of the Order of Calatrava.
His sister María de Padilla was the mistress of King Peter of Castile, the Cruel.
Padilla fought for Peter of Castile in the wars against Aragon and Granada.
In the Castilian Civil War( 1366 – 69) he went over to the side of Henry of Trastámara.
Maria of Aragon, Lady of Cameros
Maria of Aragon( c. 1299–1347 in Sijena) was a daughter of James II of Aragon and his second wife Blanche of Anjou.
She married Peter of Castile, Lord of Cameros( 1290 – 1319), son of Sancho IV of Castile.
Their daughter, Blanche of Castile( 1315 – 1375), was betrothed to Peter I of Portugal but the marriage never took place.
Maria died at Sijena in 1347.
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.
Peter of Castile, Lord of Ledesma
Peter of Castile (June 1260, in Seville – 10 October 1283, in Ledesma), was an infante of Castile.
He was a son of Alfonso X of Castile and Violant of Aragon who was also called Yolanda or Yolante.
He was Lord ("señor") of Ledesma, Alba de Tormes, Salvatierra, Miranda del Castañar, Galisteo and Granadilla.
Enrique Enríquez the Elder
Enrique Enríquez the Elder( c. 1246 – before 28 February 1323) was a nobleman of Castile, natural son of the Infante Henry of Castile.
He was Lord of La Puebla de los Infantes.
His son, Enrique Enríquez the Younger, had a distinguished career serving kings Alfonso XI of Castile and Peter of Castile.
Enrique Enríquez was the natural son of the Infante Henry of Castile and Lady Mayor Rodriguez Pecha.
His father was son of King Ferdinand III of Castile by his first wife Beatrice of Swabia.
His mother was the daughter of Esteban Pérez Pecha, Lord of San Román de Hornija and governor of Zamora, and Mayor Rodriguez de Balboa.
Mayor Rodriguez de Balboa was daughter of Pedro Rodríguez de Balboa, chamberlain of the Infante Henry of Castile.
The exact date of birth of Enrique Enríquez is not known.
Some authors say he was born in Andalusia around 1246.
Others think he was born in Italy during one of the periods when the Infante Henry was staying there.
There is some doubt about his paternity, since the Infante Henry did not name him or his mother in his will, despite naming many of his servants.
On 27 July 1253 his uncle, Alfonso X of Castile the Wise, gave Enrique Enríquez the lordship of La Puebla de los Infantes, in the present province of Seville.
Enrique Enríquez married Estefanía Rodríguez de Ceballos, Lady of Villalba de los Barros and of Vado de las Estacas.
She was daughter of Rodrigo González de Ceballos, Alcalde Mayor of Toledo and" Adelantado Mayor" of Murcia, and María Fernández de Caviedes, Lady of Caviedes, Lamadrid and La Revilla.
One son was born of the marriage, Enrique Enríquez the Younger.
In 1307 his wife ceded the lordship of Villalba de los Barros to Enrique Enríquez the Younger, with the consent of Enrique Enríquez.
The grant was confirmed by a document issued in the city of Valladolid on 12 April 1320 by King Alfonso XI of Castile.
The date when Enrique Enríquez died is unknown, but must have occurred before 28 February 1323.
On that date his wife described herself as a widow in a document issued in the city of Seville, when she sold a house.
Enrique Enríquez the Younger inherited his parents' possessions and served kings Alfonso XI of Castile and Peter of Castile, who awarded him several grants.
Several descendants of Enrique Enríquez, including his son, were buried in the monastery of San Francisco in Seville.
The monastery was looted, desecrated and burned by French troops during the Spanish War of Independence and later demolished in the year 1841.
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.
Peter of Bergamo
Peter of Bergamo also called Peter of Almadura( 1400 ca.- 1482) was an Italian Dominican theologian.
Philip of Castile, Lord of Cabrera and Ribera
Philip of Castile (Seville, 28 May 1292 – Madrid, April 1327), was an "infante of Castile", son of Sancho IV of Castile and María de Molina.
He was Lord of Cabrera and Ribera and regent of his nephew Alfonso XI of Castile.
He married his cousin Margarita de la Cerda, daughter of Alfonso de la Cerda.

Question: When is Peter Of Castile, Lord Of Ledesma's mother's birthday?
Answer: 8 June 1236