Dagestein castle was built in the 12th century, although the written documentation is unclear. Vilseck village was first time mentioned in 1185. The oldest part is the Romanesque keep. The castle was looted and burned down during the feud in 1512 and later rebuilt. The extensive reconstruction took place in the 1730s. Today Dagenstein castle is owned by the city.
Střekov Castle (Schreckenstein) is perched atop a cliff above the River Elbe, near the city of Ústí nad Labem. It was built in 1316 for John of Luxembourg, the father of the Holy Roman Emperor Charles IV, to guard an important trade route to Germany. After changing hands several times, the castle was acquired by the Lobkowicz family in 1563. Its strategic importance led to occupations by Imperial Habsburg, Saxon, and Swedish forces during the Thirty Years' War, as well as successive sieges by Austrian and Prussian armies during the Seven Years' War.
Although Střekov Castle was heavily damaged during those conflicts and abandoned as a military installation by the end of the 18th century, the 1800s saw many poets and artists visiting the castle, drawn by a new trend of interest in romantic ruins.