Career
During the Reconquista, in which he took an active part, he founded the Order of Calatrava. He was the eldest son of King Alfonso VII of León and Castile and Berengaria of Barcelona. During his father"s reign, he appears as "king of Nájera" as early as 1149.
The two brothers had just signed a treaty when Sancho suddenly died in the summer of 1158, being buried at Toledo.
Alfonso VIII of Castile, his successor
infante García, who died at birth in 1156, apparently also resulting in the death of Queen Blanche. There may also have been an older son who died in infancy.
