Okoř is a castle on a low rocky promontory in Okoř, north-west of Prague, about 15 kilometres from the city centre. In 1228 a stronghold was built in the small hamlet of Okoř. It was later modified into a Gothic castle, founded in 1359 by Frantisek Rokyčansky, a wealthy burgher of Prague's Old Town. It was later modified by comprehensive Late Gothic remodelling by the Lords of Donin. In 1518, during the reign of Bořitas of Martinice, the castle was turned into a residence in the Renaissance style.
During the Thirty Years' War the castle was heavily damaged and then restored in the Baroque style. It underwent further extension in the second half of the 15th century, and in the 17th century it was owned by Jesuits. Following their departure after the Jesuit order was discontinued in Bohemia, the Okoř castle became deserted in the late 18th century and slowly began to deteriorate.
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.