Fernando Pérez de Lara

1122–50), also called Fernando Furtado or Hurtado,[1][2] was the illegitimate son of Urraca, queen regnant of León and Castile, and her lover, Count Pedro González de Lara.

A rebellious attempt by his father to place him on the throne in 1130 failed, but he maintained good relations with his half-brother, King Alfonso VII, after that.

The Peace of Támara (1127) between Aragon–Navarre and León–Castile and the birth of a son, Ramón, to Alfonso VII (1128) dashed any hope Pedro had of replacing the latter with the king of Aragon's support.

This is the situation in which Pedro González and Beltrán de Risnel, Fernando's brother-in-law, launched a revolt in Castile in 1130 with allied uprisings in Asturias and León.

[9] According to Fray Antonio Brandâo, writing in the 16th century, after this Fernando stayed for a time in the Kingdom of Portugal, even fighting on the Portuguese side against the Almoravids at the Battle of Ourique on 25 July 1139.

He was certainly in Portugal in July 1140, when he witnessed a donation by King Afonso Henriques to the Cistercian monastery of São João de Tarouca.

[4] Nonetheless, according to a Portuguese source, the Chronicon Lusitanum, Fernando was fighting on the Leonese side against Portugal when he was captured in the Battle of Valdevez in the summer of 1141.

That Pedro González was his father, however, is proved by a contemporary document which names Count Manrique Pérez de Lara as Fernando's half-brother.