ocuments first mention Loket in 1234. The stone castle used to be dated to the reign of the King Premysl Otakar I (1197-1230); with the finding of a Romanesque chapel dates it to the 1170's. Charles IV. in a civil charter, entitled "Maiestas Carolina", named Loket among the towns inalienable from the Czech Crown. Loket is the key to the Kingdom of Bohemia.
The Romanesque-Gothic castle was built in the 2nd half of the 12th century by Vladislav II as a border guard.
13th-14th century – royal property of Přemysls' dynasty and the House of Luxembourg.
In the 15th century the castle was gaged to the Schliks' family.
In the 16th century the property of the castle passed to the city of Loket.
1922 the prison expanded, 1948 it was shut down. Since 1948 was the castle in state property.
1992 it was returned to the city and 1993 it was opened to the public.
2014 castles' collections were returned.
Porcelain, weapons, tin tableware, wooden forms for gingerbread, pharmacy from the 19th century, furniture, Romanesque rotunda, early Gothic tower, prison, torture chamber; Halls – Ceremonial, knightly, fresco hall, Meteorite, Goethe's rock collection.