Montfort Castle was built by the Counts of Veldenz around the year 1200. The first known dweller at the castle was Eberhard von Lautern (1182-1240). Lautern family owned the castle until 1432. In 1456 the army of archbishop of Mainz and Elector Palatine Frederick I destroyed the castle in local feud.
Despite some repairs Montfort stayed ruined several centuries until the remains where repaired in the 20th century. Today the castle can be visited free. There is also a small museum.
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.