Pedro Fernández de Castro (died 1214)

[2] His mother, Stephanie "the Unfortunate", was an illegitimate daughter of King Alfonso VII of León and his mistress Urraca Fernández de Castro.

In 1180, his mother, Stephanie Alfonso "The Unfortunate", was murdered by his father, Fernando Rodríguez de Castro, who believed his wife was being unfaithful with another man.

[6] He was entrusted by the king with the government of several fiefs, including Lemos and Sarria in Galicia, plus others in Extremadura and Trasierra, as well as Asturias and the city of León.

[7] Between the years 1185 and 1188, Fernandez de Castro remained a loyal vassal to his cousin Alfonso VIII, but in 1189, he had a falling out with the king and left the kingdom of Castile.

[8][9] His attitude in the remaining years of the twelfth century depended on the evolution of relations between the kingdoms of Castile and León that were under the progressive influence of the papacy and military orders.

He entered into an agreement with the Almohads and fought on their side at the Battle of Alarcos, in which Alfonso VIII's troops were defeated by the Muslims.

They were the parents of: In 1204, Fernandez de Castro again served as Alfonso IX of León's mayordomo mayor and, in the same year, with his wife Jimena and their children Álvaro and Elo and became a familiares of the Order of Calatrava.

[17][18] His body was taken to the Iberian Peninsula, and subsequently taken to the kingdom of Castile, where his remains were buried in the Monastery of Santa María de Valbuena.