Castle of Íscar, Medieval fortification in Íscar, Spain
The Castle of Íscar is a medieval fortification set on a limestone hill at the center of the town of the same name, in the province of Valladolid. The main tower has a pentagonal floor plan and is surrounded by several defensive structures that were modified over time.
Arabic sources mention the fortress as early as 939, before Christian forces took it in 1086 during the Reconquista. After that, it served as part of a line of border strongholds guarding the southern edge of Christian-held territory.
One of the towers still shows heraldic marks belonging to the noble families who once controlled this land. These symbols give visitors a direct sense of who held power here during the medieval period.
The exterior is easy to see from the surrounding streets, and guided visits to the main tower can be arranged in advance. It is worth checking access conditions before going, as opening times can vary depending on the season.
The spur projecting from the back of the main tower, flanked by two small turrets, is what gives the building its unusual pentagonal floor plan. This shape was not an aesthetic choice but a practical response to the need to protect the rear of the tower from artillery fire.
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