Arco Castle ruins are located on a prominent spur high above Arco and the Sarca Valley. The exact date of its foundation is unknown but it existed at least after the year 1000 AD. The area around Arco was inhabited already before the Middle Ages, the castle was said to have been built by the citizens and only later becoming the property of the local nobles.
The counts of Arco, probably of Italian origin, were first mentioned in 1124 deed; they temporarily served as liensmen of the Trent prince-bishops. Though they were raised to comital (Grafen) status by the Hohenstaufen emperor Frederick II in 1221, they had to acknowledge the overlordship of the Meinhardiner princely counts of Tyrol in 1272.
The Counts of Arco were expelled by the Prince-Bishops of Trent in 1349, whereafter the castle fell to the Veronese noble house of Scaliger. Nevertheless, they regained the castle in a local uprising, and in 1413 further strengthened their position by obtaining the status of Imperial immediacy from the hands of Emperor Sigismund in 1413. However, in the long run, they could not prevail against the mighty House of Habsburg, rulers of Tyrol since 1363. Arco Castle was captured in 1579, and the counts had to submit to the Habsburgs in 1614. Their estates were officially seized by Emperor Leopold I in 1680.
The castle was later abandoned after a siege by French troops under General Duke Louis Joseph of Vendôme in the course of the War of the Spanish Succession in 1703. A careful restoration began 1986 and following others in more recent years restorations have found a number of frescoes depicting knights and court ladies of medieval times.
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.