Čertův hrádek, Medieval castle ruin in Olomučany, Czech Republic.

Certův hrádek is a castle ruin near Olomučany standing at approximately 373 meters elevation with remains of a palace and tower structure. The site sits near the Svitava River and is part of a wider network of medieval fortifications in the region.

The castle was built in the second half of the 13th century and first documented in records from 1346. This early foundation shows the site held strategic importance for controlling the surrounding landscape.

The name Teufel's Castle refers to old stories about supernatural events at this location. Visitors walking through the ruins today can sense the folklore that has surrounded this place for centuries.

A marked hiking trail leads to the ruins with parking available near Klamovy hut. The site is best visited in dry conditions since the paths cross uneven ground.

The castle's true historical name is Olomučany; "Čertův hrádek" (Devil's Castle) comes from folk tradition, not from any documented owner. Older literature linked the name to Hynek Suchý Čert or Jakub Čert of Bořitov, but no source confirms either.