Located at the western end of the Monleón village, next to a steep area that dominates the confluence of the Carnicero stream with the Alagón river, Monleón Castle was raised in the 13th century as part of the defensive walls that surround the village.
Its groundplan is an irregular trapeze, with the keep in the middle. The north and east wall of the enclosure are built later than the others, to obtain a fortified perimeter that defended the tower from inside the village. The square keep is made up of large granite blocks reinforced with ashlar masonry at its corners. The top is fitted with 8 turrets. In medieval times the keep could be accessed on the second floorlevel by means of a removable stair or drawbridge. Its interior was fitted with five floors.
In 1477 the castle was besieged by the troops of King Fernando the Catholic. The reason for this was that its lord; a Salamancan knight, Don Bernardo Maldonado the Tyrant, had been manufacturing false currency amongst other crimes that caused great damage to the surrounding territories.
References:The Broch of Clickimin is a large and well preserved, though somewhat restored broch near Lerwick. Originally built on an island in Clickimin Loch (now increased in size by silting and drainage), it was approached by a stone causeway. The water-level in the loch was reduced in 1874, leaving the broch high and dry. The broch is situated within a walled enclosure and, unusually for brochs, features a large 'blockhouse' between the opening in the enclosure and the broch itself. Another unusual feature is a stone slab featuring sculptured footprints, located in the causeway which approached the site. Situated across the loch is the Clickimin Leisure Centre.