’Castle of Sádaba.’
The castle of Sádaba (Zaragoza province) was built in the early 13th century by the kingdom of Navarre to defend its frontier with Aragon. This type of compact castle was introduced in the 13th century - probably under the influence of Moorish fortress-building techniques. It could be defended by a smaller garrison than the older castle type which had a pronounced keep and encircling wall. Photo Mick Palarczyk.