The murder of Queen Leonor in the castle Historical milestone · Castrojeriz, Odra-Pisuerga, Burgos Image of Castrojeriz, not of the place itself. The fortress that count Nuño Núñez raised in the ninth century on the hill was in 1359 the setting of the violent death of queen Leonor of Castile, dowager queen of Aragon, in the framework of the purges of Pedro I. 1359 Photo: José Antonio Gil Martínez from Vigo, Spain (CC BY 2.0) What to see and do in Castrojeriz