Theobald I ordered the construction of the Tiebas castle around 1250 and since then it has suffered throughout history.
It survived numerous attacks quite well until an attack by Castile in 1378 ended with it on fire. With it, burned a good part of the Navarre Archive, and this has deprived us of a lot of information about our history.
Luckily, in 1512, it managed not be demolished under Cardinal Cisneros. Then it witnessed a bloody battle in 1810 between four battalions under Espoz y Mina against more than 3,000 French soldiers.
In the end, after being abandoned, many of the stones were taken from the castle, and work is being done now to consolidate the structure.
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).