Valeggio Castle, situated on tall spurs overlooking the River Mincio, bears the typical characteristics of a Della Scala castle, even if it was most probably built on a pre-existing structure. The Scaligeri family realised its strategic importance and erected a castle featuring the typical massive walls, square towers, battlemented keep, draw-bridge and passage guarded by a tower which is shorter than the others. The castle, built in the 13th and 14h centuries, was in full use until 1500, after which it was abandoned once it had lost its strategic importance.
References:Château de Niort is a medieval castle in the French town of Niort. It consists of two square towers, linked by a 15th-century building and dominates the Sèvre Niortaise valley.
The two donjons are the only remaining part of the castle. The castle was started by Henry II Plantagenet in the 12th century and completed by Richard the Lionheart. It was defended by a rectangular curtain wall and was damaged during the Wars of Religion. In the 18th century, the castle served as a prison.
The present keeps were the central point of a massive fortress. The southern keep is 28m tall, reinforced with turrets. The northern tower is slightly shorter at 23m. Both are flanked with circular turrets at the corners as well as semicircular buttresses. Each of the towers has a spiral staircase serving the upper floors. The Romanesque architecture is of a high quality with the dressed stones closely jointed.