Castle of Alba de Aliste is located on the margins of the river Aliste. Today it lies in ruins. In the 12th century it belonged to the Knights Templar. Don Álvaro de Luna owned it in the 15th century. It became the capital of the county of Alba y Aliste under Enrique IV.
It was built on the remains of an old Vetton fort in the 12th century and renovated in the 15th century, retaining only some walls and a tower, although it had an irregular plan of 30 meters wide and 70 long, four towers, barbican and crenellated.
References:Saint-Georges de Boscherville Abbey is a former Benedictine abbey. It was founded in about 1113 by Guillaume de Tancarville on the site of an earlier establishment of secular canons and settled by monks from the Abbey of Saint-Evroul. The abbey church made of Caumont stone was erected from 1113 to 1140. The Norman builders aimed to have very well-lit naves and they did this by means of tall, large windows, initially made possible by a wooden ceiling, which prevented uplift, although this was replaced by a Gothic vault in the 13th century. The chapter room was built after the abbey church and dates from the last quarter of the 12th century.
The arrival of the Maurist monks in 1659, after the disasters of the Wars of Religion, helped to get the abbey back on a firmer spiritual, architectural and economic footing. They erected a large monastic building one wing of which fitted tightly around the chapter house (which was otherwise left as it was).