The Château de Gisors was a key fortress of the Dukes of Normandy in the 11th and 12th centuries. It was intended to defend the Anglo-Norman Vexin territory from the pretensions of the King of France. King William II of England ordered Robert of Bellême to build the first castle at Gisors. The first building work is dated to about 1095, and consisted of a motte, which was enclosed in a spacious courtyard or bailey. Henry I of England, Duke of Normandy, added an octagonal stone keep to the motte.
In 1193 the castle fell into the hands of the King of France and thereafter lost temporarily its importance as a frontier castle. A second keep, cylindrical in shape, called the Prisoner's Tower, was added to the outer wall of the castle at the start of the 13th century, following the French conquest of Normandy. Further reinforcement was added during the Hundred Years' War. In the 16th century, earthen ramparts were built. Since 1862, Château de Gisors has been recognised as a monument historique by the French Ministry of Culture.
Château de Gisors is also known for its links with the Templars. Put into their charge by the French king between 1158 and 1160, it became the final prison of the Grand Master of the Order, Jacques de Molay, in 1314.
References:Trenčín Castle is relatively large renovated castle, towering on a steep limestone cliff directly above the city of Trenčín. It is a dominant feature not only of Trenčín, but also of the entire Považie region. The castle is a national monument.
History of the castle cliff dates back to the Roman Empire, what is proved by the inscription on the castle cliff proclaiming the victory of Roman legion against Germans in the year 179.
Today’s castle was probably built on the hill-fort. The first proven building on the hill was the Great Moravian rotunda from the 9th century and later there was a stone residential tower, which served to protect the Kingdom of Hungary and the western border. In the late 13th century the castle became a property of Palatine Matúš Csák, who became Mr. of Váh and Tatras.
Matúš Csák of Trenčín built a tower, still known as Matthew’s, which is a dominant determinant of the whole building.