The castle of San Esteban de Gormaz is one of the key castles that changed ruler once and again during the 10th and 11th century when it finally came under Christian domain. During the reign of King García I, king of Leon, it was reinforced giving place to a repopulation of the town. From there, soldiers would control transit through the Douro River and they would guard the bridge that passed over this river. Nowadays, what is left of the castle is a large wall that is about two metres thick. The castle was built with ashlar stonework, possibly of Roman origin.
Near the access gate, there is a great opening in the ground known as Pozo Lairón, although is not certain what it was used for. The castle is narrow and elongated, and inside there are remains of water pools and underground constructions. Although it is quite deteriorated, it is of great importance due to its strategical location from which you can see the castle of Gormaz.References:
The Palace of the Kings of Navarre of Olite was one of the seats of the Court of the Kingdom of Navarre, since the reign of Charles III 'the Noble' until its conquest by Castile (1512). The fortification is both castle and palace, although it was built more like a courtier building to fulfill a military function.
On an ancient Roman fortification was built during the reign of Sancho VII of Navarre (13th century) and extended by his successors Theobald I and Theobald II, which the latter was is installed in the palace in 1269 and there he signed the consent letter for the wedding of Blanche of Artois with his brother Henry I of Navarre, who in turn, Henry I since 1271 used the palace as a temporary residence. This ancient area is known as the Old Palace.
Then the palace was housing the Navarrese court from the 14th until 16th centuries, Since the annexation (integration) of the kingdom of Navarre for the Crown of Castile in 1512 began the decline of the castle and therefore its practically neglect and deterioration. At that time it was an official residence for the Viceroys of Navarre.
In 1813 Navarrese guerrilla fighter Espoz y Mina during the Napoleonic French Invasion burned the palace with the aim to French could not make forts in it, which almost brought in ruin. It is since 1937 when architects José and Javier Yarnoz Larrosa began the rehabilitation (except the non-damaged church) for the castle palace, giving it back its original appearance and see today. The restoration work was completed in 1967 and was paid by the Foral Government of Navarre.