Construction of Château de Mérens castle dates from the end of the 13th and beginning of the 14th centuries. It was altered in the early 17th century.
The hub of the castle corresponds to the original Gascon structure; the south west square tower belongs to this period of construction. At the start of the 17th century, the castle was furnished with a new system of defence, including a round walk. At the same time, windows were added and the internal layout altered. In the west elements of the mediaeval enceinte can be seen in the wine cellar. Works carried out between 1604 and 1613 concentrated on providing windows and on doubling the height of the east façade. The castle was later converted for agricultural use.
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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.