Schengen Castle dates from 1390 but it was was torn down by the industrialist Jean-Nicolas Collart in 1812. He built a residential manor house in its place and now Schengen Castle is a hotel and conference centre.
All that remained of the medieval building was its round central tower. The castle's most famous visitor was certainly Victor Hugo who visited the Collarts in 1871 and made a sketch of the old tower.
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.