The castle was built in the first half of the 12th century by the lords of Cmurek. Burkhard de Morekke was first mentioned in old records in 1148. In 1174 Reinbert of Cmurek was the chief chamberlain (procurator) at the court of the Styrian Border Count Ottokar IV. After the original owners died out in 1245, the manor and the castle were inherited by the von Traungaus, ministerial lords of Traungau. The castle itself was mentioned in sources only in 1299 as Hovs Murek. In 1386, Cmurek was bought by the Counts of Celje (Herman II and William), and in 1401 Count Herman of Celje sold it to his brother-in-law Hans Lord of Stubenberg. The Lords of Stubenberg owned it until 1931, when it was bought by Anton Mali, the castle's caretaker until then.
The castle is still Romanesque in its irregular layout, with a Renaissance arcaded courtyard and peripheral residential tracts in the core, although 16th-century alterations have considerably obliterated the original architectural designs. In the 18th century a multi-storey Romanesque tower was demolished.[2]
After the Second World War, the castle was first converted into a home for the disabled in 1949, then into a home for the mentally defective in 1956, later renamed the Institute for the Mentally and Nervously Ill. It operated until 2004, and it is thought to have housed between 200 and 400 people at any one time.
