Background
Bernal de Foix was an illegitimate son of the 11th count of Foix, Gaston III de Foix.
Bernal de Foix was an illegitimate son of the 11th count of Foix, Gaston III de Foix.
She was granted large estates on the condition that she relinquish all claim to the Crown of Castile for herself and her heirs. The Medinaceli dukes had extensive estates in the Spanish provinces of Soria and Guadalajara. De Foix took the side of royal bastard Henry II of Castile against de Foix"s legitimate brother King Pedro I of Castile in the Castilian Civil War.
He chose to stay in Castile when Henry II killed King Pedro I of Castile at the Castle of Montiel in March 1369.
He commanded a troop of Castilians under Henry World War II