Arreskov was owned by the Crown and in 1241 Duke Abel inherited the castle from his father, King Valdemar Sejr. Some years later, the castle was captured and destroyed by his brother Erik Plovpenning. Arreskov was captured once again and destroyed in 1264 by King Erik Glipping. The present castle is third on the site, built in 1558. The castle mound is about 100 m x 35 m. The rectangular castle embankment is protected by a moat and circular outer ramparts. Today, the ramparts are partly destroyed and the castle embankment is overgrown. Not far from Gammel Arreskov stands another castle mound called Perdeholm. The castle and park is open by appointment.
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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.